In 1924, Kelly's Motors in NSW, Australia,&nbsp;installed&nbsp;its&nbsp;first car radio.In 1930, the Galvin Corporation introduced one of the first commercial car radios, the Motorola model 5T71, which sold for between $110 and $130 (2009: $1,700) and could be installed in most popular automobiles.

When were radios first fitted in cars?

<ul><li><a href="/wiki/Main_Page">Home </a> </li><li><a href="/wiki/Special:Random#/random">Random </a> </li><li><a href="/wiki/Special:Nearby">Nearby </a> </li> </ul>

<ul><li><a href="/w/index.php?title=Special:MobileOptions&returnto=Vehicle+audio">Settings </a> </li> </ul>

<ul><li><a href="https://donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_en.wikipedia.org&uselang=en&utm_key=minerva">Donate </a> </li> </ul>

<ul><li><a href="/wiki/Wikipedia:About">About Wikipedia </a> </li><li><a href="/wiki/Wikipedia:General_disclaimer">Disclaimers </a> </li> </ul>

<ul><li><a href="/wiki/Special:MobileLanguages/Vehicle_audio">Language </a> </li><li><a href="/w/index.php?title=Special:UserLogin&returnto=Vehicle+audio">Watch </a> </li><li><a href="/w/index.php?title=Vehicle_audio&action=edit&section=0">Edit </a> </li> </ul>

Vehicle audio is equipment installed in a <a href="/wiki/Car">car </a>or other vehicle to provide <a href="/wiki/In-car_entertainment">in-car entertainment </a>and information for the vehicle occupants. Until the 1950s it consisted of a simple <a href="/wiki/AM_radio">AM radio </a>. Additions since then have included <a href="/wiki/FM_radio">FM radio </a>(1952), <a href="/wiki/8-track_tape">8-track tape </a>players, <a href="/wiki/Cassette_tape">cassette </a>players, record players, <a href="/wiki/Compact_disc">CD </a>players (1984), <a href="/wiki/DVD">DVD </a>players, <a href="/wiki/Blu-ray">Blu-ray </a>players, navigation systems, <a href="/wiki/Bluetooth">Bluetooth </a>telephone integration, and smartphone controllers like <a href="/wiki/CarPlay">CarPlay </a>and <a href="/wiki/Android_Auto">Android Auto </a>. Once controlled from the dashboard with a few buttons, they can now be controlled by <a href="/wiki/Universal_steering_wheel_control_interface">steering wheel controls </a>and <a href="/wiki/Speech_recognition">voice commands </a>.

Initially implemented for listening to music and radio, vehicle audio is now part of car <a href="/wiki/Telematics">telematics </a>, <a href="/wiki/Telecommunication">telecommunication </a>, in-vehicle security, <a href="/wiki/Handsfree">handsfree </a>calling, <a href="/wiki/Automotive_navigation_system">navigation </a>, and <a href="/wiki/Remote_diagnostics">remote diagnostics systems </a>. The same loudspeakers may also be used to minimize road and engine noise with <a href="/wiki/Active_noise_control">active noise control </a>, or they may be used to augment engine sounds, for instance making a smaller engine sound bigger.

<ul><li><a href="#History">1 History </a><ul><li><a href="#Radio">1.1 Radio </a> </li><li><a href="#Physical_media">1.2 Physical media </a> </li> </ul> </li><li><a href="#Active_noise_control_and_noise_synthesis">2 Active noise control and noise synthesis </a> </li><li><a href="#Components_and_terms">3 Components and terms </a> </li><li><a href="#Legality">4 Legality </a> </li><li><a href="#Gallery">5 Gallery </a> </li><li><a href="#See_also">6 See also </a> </li><li><a href="#References">7 References </a> </li> </ul>

In 1904, well before commercially viable technology for mobile radio was in place, <a href="/wiki/United_States">American </a><a href="/wiki/Inventor">inventor </a>and self-described "Father of Radio" <a href="/wiki/Lee_de_Forest">Lee de Forest </a>did some demonstration around a car radio at the 1904 <a href="/wiki/Louisiana_Purchase_Exposition">Louisiana Purchase Exposition </a>in <a href="/wiki/St._Louis,_Missouri">St. Louis </a>.<a href="#cite_note-1">[1] </a>

Around 1920, <a href="/wiki/Vacuum_tube">vacuum tube </a>technology had matured to the point where the availability of <a href="/wiki/Radio_receiver">radio receivers </a>made radio broadcasting viable.<a href="#cite_note-2">[2] </a> A technical challenge was that the vacuum tubes in the radio receivers required 50 to 250 <a href="/wiki/Voltage">volt </a><a href="/wiki/Direct_current">direct current </a>, but car batteries ran at 6V. Voltage was stepped up with a <a href="/wiki/Vibrator_(electronic)">vibrator </a>that provided a pulsating DC which could be converted to a higher voltage with a <a href="/wiki/Transformer">transformer </a>, <a href="/wiki/Rectifier">rectified </a>, and filtered to create higher-voltage DC.

In 1924, Kelly's Motors in NSW, Australia, installed its first car radio.<a href="#cite_note-3">[3] </a> <a href="#cite_note-4">[4] </a> <a href="#cite_note-5">[5] </a>

In 1930, the American <a href="/wiki/Galvin_Manufacturing_Corporation">Galvin Manufacturing Corporation </a>marketed a <a href="/wiki/Motorola">Motorola </a>branded <a href="/wiki/Radio_receiver">radio receiver </a>for $130.<a href="#cite_note-caranddriver-6">[6] </a> It was expensive: the contemporary <a href="/wiki/Ford_Model_A_(1927%E2%80%9331)">Ford Model A </a>cost $540. A Plymouth sedan, "wired for Philco Transistone radio without extra cost," is advertised in <a href="/wiki/Ladies%27_Home_Journal">Ladies' Home Journal </a>in 1931. In 1932 in Germany the <a href="/wiki/Blaupunkt">Blaupunkt </a>AS 5 <a href="/wiki/Medium_wave">medium wave </a>and <a href="/wiki/Longwave">longwave </a>radio was marketed for 465 Reichsmark, about one third of the price of a small car. Because it took nearly 10 litres of space, it could not be located near the driver, and was operated via a steering wheel remote control.<a href="#cite_note-7">[7] </a> In 1933 <a href="/wiki/Crossley_Motors">Crossley Motors </a>offer a factory fitted car radio.<a href="#cite_note-guinness-8">[8] </a> By the late 1930s, push button AM radios were considered a standard feature. In 1946, there were an estimated 9 million AM car radios in use.<a href="#cite_note-When_the_car_radio_was_introduced-9">[9] </a>

An <a href="/wiki/Frequency_modulation">FM </a>receiver was offered by Blaupunkt in 1952. In 1953, Becker introduced the AM/FM Becker Mexico with a Variometer tuner, basically a station-search or scan function.<a href="#cite_note-The_History_of_the_Car_Stereo-10">[10] </a>

In April 1955, the <a href="/wiki/Chrysler">Chrysler Corporation </a>announced that it was offering a <a href="/wiki/Mopar">Mopar </a>model 914HR branded <a href="/wiki/Philco">Philco </a>all transistor car radio,<a href="#cite_note-11">[11] </a> as a $150 option for its 1956 Chrysler and Imperial car models. Chrysler Corporation had decided to discontinue its all transistor car radio option at the end of 1956, due to it being too expensive, and replaced it with a cheaper hybrid (transistors and low voltage vacuum tubes) car radio for its new 1957 car models.<a href="#cite_note-Hirsh-12">[12] </a> In 1963, Becker introduced the Monte Carlo, a tubeless <a href="/wiki/Solid-state_electronics">solid state </a>radio with no vacuum tubes.<a href="#cite_note-The_History_of_the_Car_Stereo-10">[10] </a>

From 1974 to 2005, the <a href="/wiki/Autofahrer-Rundfunk-Informationssystem">Autofahrer-Rundfunk-Informationssystem </a>was used by the German <a href="/wiki/ARD_(broadcaster)">ARD </a>network.<a href="#cite_note-13">[13] </a> Developed jointly by the <a href="/wiki/Institut_f%C3%BCr_Rundfunktechnik">Institut für Rundfunktechnik </a>and Blaupunkt,<a href="#cite_note-14">[14] </a> it indicated the presence of traffic announcements through manipulation of the 57<a href="/wiki/KHz">kHz </a><a href="/wiki/Subcarrier">subcarrier </a>of the station's FM signal.<a href="#cite_note-15">[15] </a> ARI was replaced by the <a href="/wiki/Radio_Data_System">Radio Data System </a>.<a href="#cite_note-16">[16] </a>

In the 2010s, <a href="/wiki/Internet_radio">internet radio </a>and <a href="/wiki/Satellite_radio_system">satellite radio </a>came into competition with FM radio. By this time some models were offering <a href="/wiki/5.1_surround_sound">5.1 surround sound </a>. And the automobile head unit became increasingly important as a housing for front and <a href="/wiki/Backup_camera">backup </a><a href="/wiki/Dashcam">dashcams </a>, <a href="/wiki/Automotive_navigation_system">navis </a>, and operating systems with multiple functions, such as <a href="/wiki/Android_Auto">Android Auto </a>, <a href="/wiki/CarPlay">CarPlay </a>and <a href="/wiki/MirrorLink">MirrorLink </a>. Latest models are coming equipped with features like Bluetooth technology along with HDMI port for better connectivity. Screen size varies from 5-inch to 7-inch for the double Din car stereos.<a href="#cite_note-17">[17] </a>

The AM/FM radio combined with a CD player has remained a mainstay of car audio, despite being obsolescent in non-car applications.<a href="#cite_note-18">[18] </a> <a href="#cite_note-19">[19] </a>

Most modern vehicle audio are now equipped with <a href="/wiki/Anti-theft_system">anti-theft system </a>for protection purposes.

Mobile players for physical media have been provided for <a href="/wiki/Vinyl_record">vinyl records </a>, <a href="/wiki/8-track_tape">8-track tapes </a>, <a href="/wiki/Cassette_tape">cassette tapes </a>, and <a href="/wiki/Compact_disc">compact discs </a>.

Attempts at providing mobile play from media were first made with vinyl records, beginning in the 1950s. The first such player was offered by Chrysler as an option on 1956 Chrysler, Desoto, Dodge, and Plymouth cars. The player was developed by <a href="/wiki/CBS_Labs">CBS Labs </a>and played a limited selection of specially provided 7-inch discs at 16⅔ <a href="/wiki/RPM">RPM </a>. The unit was an expensive option and was dropped after two years. Cheaper options using commonly available <a href="/wiki/45_rpm_record">45 rpm records </a>were made by <a href="/wiki/RCA_Victor">RCA Victor </a>(available only in 1961) and <a href="/wiki/Norelco">Norelco </a>. All of these players required extra pressure on the <a href="/wiki/Gramophone_needle">needle </a>to avoid skipping during vehicle movement, which caused accelerated wear on the records.<a href="#cite_note-20">[20] </a>

In 1962, Muntz introduced the Wayfarer 4-track cartridge tape player. Celebrities, including Frank Sinatra, had these units installed in their cars.

In 1965, <a href="/wiki/Ford_Motor_Company">Ford </a>and Motorola jointly introduced the in-car <a href="/wiki/8-track_tape">8-track tape </a>player as optional equipment for 1966 Ford car models. In 1968, a dashboard car radio with a built-in <a href="/wiki/Cassette_tape">cassette tape </a>player was introduced by Philips. In subsequent years, cassettes supplanted the 8-track and improved the technology, with longer play times, better tape quality, auto-reverse, and <a href="/wiki/Dolby_noise-reduction_system">Dolby noise reduction </a>. They were popular throughout the 1970s and 1980s.

Pioneer introduced the CDX-1, the first car <a href="/wiki/CD">CD </a>(compact disc) player, in 1984. It was known for its improved sound quality, instant track skipping, and the format's increased durability over cassette tapes. Car CD changers started to gain popularity in the late 80s and continuing throughout the 90s, with the earlier devices being trunk-mounted and later ones being mounted in the head unit, some able to accommodate six to ten CDs.<a href="#cite_note-21">[21] </a> Stock and aftermarket CD players began appearing in the late 1980s, competing with the cassette. The first car with an OEM CD player was the 1987 <a href="/wiki/Lincoln_Town_Car">Lincoln Town Car </a>, and the last new cars in the American market to be factory-equipped with a cassette deck in the dashboard was the 2010 Lexus SC430,<a href="#cite_note-22">[22] </a> and the Ford Crown Victoria.<a href="#cite_note-23">[23] </a> The car cassette adapter allowed motorists to plug in a portable music player (CD player, MP3 player) into an existing installed cassette tape deck.<a href="#cite_note-24">[24] </a>

In the early 21st century, compact digital storage media – <a href="/wiki/Bluetooth">Bluetooth </a>-enabled devices, <a href="/wiki/Thumb_drive">thumb drives </a>, <a href="/wiki/Memory_cards">memory cards </a>, and dedicated hard drives – came to be accommodated by vehicle audio systems.

Active noise control and noise synthesis  Edit

The automobile sound system may be part of an <a href="/wiki/Active_noise_control">active noise control </a>system which reduces engine and road noise for the driver and passengers. One or more microphones are used to pick up sound from various places on the vehicle, especially the engine compartment, underside or exhaust pipes, and these signals are handled by a <a href="/wiki/Digital_signal_processor">digital signal processor </a>(DSP) then sent to the loudspeakers in such a way that the processed signal reduces or cancels out the outside noise heard inside the car. An early system focused only on engine noise was developed by <a href="/wiki/Lotus_Cars">Lotus </a>and licensed for the 1992 <a href="/wiki/Nissan_Bluebird">Nissan Bluebird </a>models sold in Japan.<a href="#cite_note-25">[25] </a> Lotus later teamed with <a href="/wiki/Harman_International_Industries">Harman </a>in 2009 to develop a more complete noise reduction system, including road and tire noise as well as chassis vibrations.<a href="#cite_note-26">[26] </a> One benefit of active noise control is that the car can weigh less, with less sound-deadening material used, and without a heavy <a href="/wiki/Balance_shaft">balance shaft </a>in the engine. Removing the balance shaft also increases fuel efficiency.<a href="#cite_note-27">[27] </a> The 2013 Honda Accord used an active noise control system, as did the 2013 Lincoln luxury line and the Ford C-Max and Fusion models.<a href="#cite_note-28">[28] </a> Other operating data may also play a part in the DSP, data such as the engine's speed in revolutions per minute (RPM) or the car's highway speed. A multiple source reduction system may reach as much as 80% of the noise removed.<a href="#cite_note-29">[29] </a>

The same system may also be used to synthesize or augment engine noise to make the engine sound more powerful to the driver.<a href="#cite_note-30">[30] </a> For the 2015 <a href="/wiki/Ford_Mustang">Ford Mustang </a>EcoBoost Fastback and EcoBoost Fastback Premium, an "Active Noise Control" system was developed that amplifies the engine sound through the car speakers.<a href="#cite_note-31">[31] </a> A similar system is used in the <a href="/wiki/Ford_F-Series">F-150 </a><a href="/wiki/Pickup_truck">pickup truck </a>. <a href="/wiki/Volkswagen">Volkswagen </a>uses a <a href="/wiki/Soundaktor">Soundaktor </a>, a special speaker to play sounds in cars such as the <a href="/wiki/Volkswagen_Golf">Golf </a>GTi and <a href="/wiki/Volkswagen_New_Beetle">Beetle </a>Turbo. <a href="/wiki/BMW">BMW </a>plays a recorded sample of its motors through the car speakers, using different samples according to the engine’s load and power.<a href="#cite_note-32">[32] </a>

The stock system is the <a href="/wiki/OEM">OEM </a>application that the vehicle's manufacturer specified to be installed when the car was built.

Aftermarket components can also be used.

<ul><li><a href="/wiki/Head_unit">Head unit </a>: Headunit products includes the screen and buttons and are manufactured mainly in DIN form factor, which refers to <a href="/wiki/ISO_7736">ISO 7736 </a>. Head units come as single DIN or double DIN. </li><li><a href="/wiki/Connectors_for_car_audio">Connectors for car audio </a>, where <a href="/wiki/ISO_10487">ISO 10487 </a>Harness Adapter is used. </li><li><a href="/wiki/Capacitor">Capacitors </a>. </li><li>Mobile <a href="/wiki/Audio_power_amplifier">audio power amplifiers </a>. </li> </ul>

Amplifiers increase the power level of audio signals. Some head units have built-in stereo amplifiers. Other car audio systems use a separate stand-alone amplifier. Every amplifier has a rated power level sometimes noted on the head unit with the built-in amplifier, or on the label of a stand-alone unit.

<ul><li>Car <a href="/wiki/Loudspeaker">speakers </a>and <a href="/wiki/Subwoofers">subwoofers </a>. </li><li>Sound-deadening material is often used in the door cavities and boot area to dampen excess vibration of the panels in the car in response to loud subwoofer bass tones, especially the boot (trunk). </li><li><a href="/wiki/Optical_drive">Optical drives </a>with <a href="/wiki/Optical_disc_drive#Tray_and_slot_loading">slot-loading mechanism </a>. </li> </ul>

Excessively loud sound systems in automobiles violate the <a href="/wiki/Noise_regulation">noise ordinance </a>of municipalities, some of which have outlawed them.<a href="#cite_note-33">[33] </a> In 2002, the <a href="/wiki/United_States_Department_of_Justice">U.S. Department of Justice </a>issued a guide to <a href="/wiki/Police_officer">police officers </a>on how to deal with problems associated with loud audio systems in cars.<a href="#cite_note-34">[34] </a>

<ul><li><div><div><div><a href="/wiki/File:Autoradio_Roehre.jpg"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/40/Autoradio_Roehre.jpg/120px-Autoradio_Roehre.jpg"> </a> </div> </div><div>A 1950s Philips car radio using both transistor and valves. This model used a range of valves that only required 12 volts for their plate (anode) voltage.<a href="#cite_note-35">[35] </a> </div> </div> </li><li><div><div><div><a href="/wiki/File:Chevrolet_Corvette_Transistorized_Hybrid_Car_Radio-1956.JPG"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4f/Chevrolet_Corvette_Transistorized_Hybrid_Car_Radio-1956.JPG/120px-Chevrolet_Corvette_Transistorized_Hybrid_Car_Radio-1956.JPG"> </a> </div> </div><div>GM Delco Transistorized "Hybrid" (vacuum tubes and transistors), first offered as an option on the 1956 Chevrolet Corvette car models </div> </div> </li><li><div><div><div><a href="/wiki/File:Kenwood_KDC-W4527.jpg"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/99/Kenwood_KDC-W4527.jpg/120px-Kenwood_KDC-W4527.jpg"> </a> </div> </div><div>A car stereo head unit in a dashboard </div> </div> </li><li><div><div><div><a href="/wiki/File:Lincoln_Continental_Cabriolet_photo-58.JPG"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/41/Lincoln_Continental_Cabriolet_photo-58.JPG/120px-Lincoln_Continental_Cabriolet_photo-58.JPG"> </a> </div> </div><div>1942 Lincoln Continental Cabriolet radio </div> </div> </li><li><div><div><div><a href="/wiki/File:VW_Hebm%C3%BCller_(2015-09-12_3701).JPG"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7b/VW_Hebm%C3%BCller_%282015-09-12_3701%29.JPG/120px-VW_Hebm%C3%BCller_%282015-09-12_3701%29.JPG"> </a> </div> </div><div>Dashboard of VW Hebmüller with Telefunken Radio (1949/50) </div> </div> </li><li><div><div><div><a href="/wiki/File:W110_Cockpit.jpg"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/53/W110_Cockpit.jpg/120px-W110_Cockpit.jpg"> </a> </div> </div><div>1964 <a href="/wiki/Mercedes-Benz_W110">Mercedes-Benz W110 </a>190c dashboard with original FM Blaupunkt "Frankfurt" head unit. </div> </div> </li><li><div><div><div><a href="/wiki/File:FORD_Taunus_17M_P2(TL)_deLuxe_Two_door_1958_Radio_Blaupunkt_K%C3%B6ln.jpg"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b7/FORD_Taunus_17M_P2%28TL%29_deLuxe_Two_door_1958_Radio_Blaupunkt_K%C3%B6ln.jpg/120px-FORD_Taunus_17M_P2%28TL%29_deLuxe_Two_door_1958_Radio_Blaupunkt_K%C3%B6ln.jpg"> </a> </div> </div><div>Blaupunkt Köln Radio - German 1958 Ford Taunus 17M P2 deLuxe </div> </div> </li><li><div><div><div><a href="/wiki/File:Ford_Sierra_CLX_1990_Radio.jpg"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a5/Ford_Sierra_CLX_1990_Radio.jpg/90px-Ford_Sierra_CLX_1990_Radio.jpg"> </a> </div> </div><div>1990 Ford Sierra CLX Radio-Cassette head unit in a dashboard with cassette storage </div> </div> </li><li><div><div><div><a href="/wiki/File:1978_AMC_Matador_sedan_red_NC_detail_of_factory_AM-FM-stereo-8-track_unit.jpg"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0e/1978_AMC_Matador_sedan_red_NC_detail_of_factory_AM-FM-stereo-8-track_unit.jpg/120px-1978_AMC_Matador_sedan_red_NC_detail_of_factory_AM-FM-stereo-8-track_unit.jpg"> </a> </div> </div><div>1978 AMC Matador sedan factory AM-FM-stereo-<a href="/wiki/8-track_tape">8-track </a>unit with an album by <a href="/wiki/The_Blues_Brothers">The Blues Brothers </a> </div> </div> </li><li><div><div><div><a href="/wiki/File:2008-04-16_Car_audio_drivers.jpg"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a2/2008-04-16_Car_audio_drivers.jpg/120px-2008-04-16_Car_audio_drivers.jpg"> </a> </div> </div><div>A set of speaker drivers removed from a passenger vehicle </div> </div> </li><li><div><div><div><a href="/wiki/File:Lightning_Audio_750_Watts_Car_Audio_Amplifier.JPG"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Lightning_Audio_750_Watts_Car_Audio_Amplifier.JPG/120px-Lightning_Audio_750_Watts_Car_Audio_Amplifier.JPG"> </a> </div> </div><div>A car audio amplifier </div> </div> </li><li><div><div><div><a href="/wiki/File:JLaudiosubwoofers.jpg"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/ac/JLaudiosubwoofers.jpg/120px-JLaudiosubwoofers.jpg"> </a> </div> </div><div>Two 10-inch subwoofers in the trunk of a car </div> </div> </li><li><div><div><div><a href="/wiki/File:Toyota_Camry_Factory_Integrated_(In-Dash)_Head_Unit.jpg"><img src="//upload.wikimedia.org/wikipedia/en/thumb/8/8e/Toyota_Camry_Factory_Integrated_%28In-Dash%29_Head_Unit.jpg/120px-Toyota_Camry_Factory_Integrated_%28In-Dash%29_Head_Unit.jpg"> </a> </div> </div><div>As technology keeps evolving, head units are now paired with the climate control system and other functions </div> </div> </li> </ul>

<ul><li><a href="/wiki/List_of_car_audio_manufacturers_and_brands">List of car audio manufacturers and brands </a> </li><li><a href="/wiki/Active_sound_design">Active sound design </a> </li> </ul>

<ol><li><a href="#cite_ref-1">^ </a> .mw-parser-output cite.citation{font-style:inherit}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .id-lock-free a,.mw-parser-output .citation .cs1-lock-free a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited a,.mw-parser-output .id-lock-registration a,.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription a,.mw-parser-output .citation .cs1-lock-subscription a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-ws-icon a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-maint{display:none;color:#33aa33;margin-left:0.3em}.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit} <cite>Erb, Ernst (30 April 2012). <a href="https://www.radiomuseum.org/forum/first_car_radios_history_and_development_of_early_car_radios.html">"First Car radios-history and development of early Car Radios" </a>. radiomuseum.org . Retrieved 10 February 2020 . </cite> </li><li><a href="#cite_ref-2">^ </a> <cite>Guarnieri, M. (2012). "The age of vacuum tubes: the conquest of analog communications". IEEE Ind. Electron. M. : 52–54. <a href="/wiki/Doi_(identifier)">doi </a>:<a href="https://doi.org/10.1109%2FMIE.2012.2193274">10.1109/MIE.2012.2193274 </a>. <a href="/wiki/S2CID_(identifier)">S2CID </a><a href="https://api.semanticscholar.org/CorpusID:42357863">42357863 </a>. </cite> </li><li><a href="#cite_ref-3">^ </a> <cite><a href="https://web.archive.org/web/20121209064343/http://www.carhistory4u.com/the-last-100-years/parts-of-the-car/car-radio">"Car History 4U - History of the Car Radio in Motor Cars" </a>. 2012-12-09. Archived from <a href="http://www.carhistory4u.com/the-last-100-years/parts-of-the-car/car-radio">the original </a>on 2012-12-09. Retrieved 2018-08-17 . </cite> </li><li><a href="#cite_ref-4">^ </a> <cite><a href="https://www.radioinfo.com.au/news/lessons-history-inform-acma-thinking-today-radcomms-conference">"Lessons of history inform ACMA thinking today: RadComms Conference" </a>. Radio info . 30 April 2009. Retrieved 17 August 2018 . </cite> </li><li><a href="#cite_ref-5">^ </a> <cite><a href="https://www.autoguru.com.au/car-advice/articles/10-aussie-auto-facts-you-probably-didnt-know">"10 Aussie Auto Facts You Probably Didn't Know" </a>. autoguru.com.au . Retrieved 2018-08-17 . </cite> </li><li><a href="#cite_ref-caranddriver_6-0">^ </a> <cite><a href="http://www.caranddriver.com/features/the-history-of-car-radios">"The History of Car Radios" </a>. Car and Driver . Retrieved 14 January 2016 . </cite> </li><li><a href="#cite_ref-7">^ </a> <cite><a href="http://www.blaupunkt.com/us/about-us/success-story/">"Blaupunkt: Success Story" </a>. blaupunkt.com . Retrieved 2016-01-14 . </cite> </li><li><a href="#cite_ref-guinness_8-0">^ </a> <cite>Harding (ed) (1977). Guinness book of car facts and feats . London: Guinness Superlatives. <a href="/wiki/ISBN_(identifier)">ISBN </a><a href="/wiki/Special:BookSources/0-900424-54-0">0-900424-54-0 </a>. </cite> CS1 maint: extra text: authors list (<a href="/wiki/Category:CS1_maint:_extra_text:_authors_list">link </a>) </li><li><a href="#cite_ref-When_the_car_radio_was_introduced_9-0">^ </a> <cite><a href="http://mentalfloss.com/article/29631/when-car-radio-was-introduced-people-freaked-out">"When the Car Radio Was Introduced, People Freaked Out" </a>. MentalFloss . Retrieved 2016-08-10 . </cite> </li><li>^ <a href="#cite_ref-The_History_of_the_Car_Stereo_10-0">a </a><a href="#cite_ref-The_History_of_the_Car_Stereo_10-1">b </a> <cite><a href="https://www.pcmag.com/article2/0,2817,2399878,00.asp">"The History of the Car Stereo" </a>. PCMAG . Retrieved 2016-01-14 . </cite> </li><li><a href="#cite_ref-11">^ </a> <cite><a href="http://www.radiomuseum.org/r/philco_mopar_914_hr_ch_c_5690hr.html">"Mopar 914-HR Ch= C-5690HR Car Radio Philco, Philadelphia" </a>. www.radiomuseum.org . Retrieved 2016-01-14 . </cite> </li><li><a href="#cite_ref-Hirsh_12-0">^ </a> <cite>Hirsh, Rick. <a href="http://www.allpar.com/stereo/Philco/index.html">"Philco's All-Transistor Mopar Car Radio" </a>. Allpar.com. Retrieved February 18, 2015 . </cite> </li><li><a href="#cite_ref-13">^ </a> <cite><a href="http://www.irt.de/en/irt/milestones.html">"Institut für Rundfunktechnik Historic Milestones" </a>. <a href="https://web.archive.org/web/20090420084023/http://www.irt.de/en/irt/milestones.html">Archived </a>from the original on 20 April 2009. Retrieved 2009-05-17 . </cite> </li><li><a href="#cite_ref-14">^ </a> <cite><a href="https://web.archive.org/web/20091007182550/http://www.rds.org.uk/rds98/pdf/RDS_25_090327_4.pdf">"March 2009: RDS is now 25 – the complete history" </a>(PDF) . Geneva, Switzerland: The RDS Forum. 2009-03-27. p. 1. Archived from <a href="http://www.rds.org.uk/rds98/pdf/RDS_25_090327_4.pdf">the original </a>(PDF) on October 7, 2009. Retrieved 2009-05-17 . </cite> </li><li><a href="#cite_ref-15">^ </a> <a href="https://worldwide.espacenet.com/textdoc?DB=EPODOC&IDX=EP1432157">EP 1432157 </a> </li><li><a href="#cite_ref-16">^ </a> <cite><a href="http://www.shortnews.de/start.cfm?id=562110">"Das Autofahrer-Rundfunk-Informationssystem wird abgeschaltet" </a>(in German). Regensburg, Germany: ShortNews. 2005-02-28. Retrieved 2009-05-17 . </cite> </li><li><a href="#cite_ref-17">^ </a> <cite><a href="https://stereoauthority.com/best-double-din-stereo/">"Best Double Din Stereo 2019 - Top 5 Reviews" </a>. Stereo Authority . 2019-01-01. Retrieved 2019-01-16 . </cite> </li><li><a href="#cite_ref-18">^ </a> <cite>DeVito, Dominic. <a href="https://www.crutchfield.ca/learn/is-the-car-cd-player-dead.html">"Is the car CD player dead?" </a>. Crutchfield . </cite> </li><li><a href="#cite_ref-19">^ </a> <cite>Siegel, Rob. <a href="https://www.hagerty.com/articles-videos/Articles/2018/01/08/obsolete-car-audio-part-5">"History of obsolete car audio, part 5: What's old is new (or, at least, in vogue)" </a>. hagerty.com . </cite> </li><li><a href="#cite_ref-20">^ </a> <cite>Sharon Riley (April 12, 2014). <a href="https://www.consumerreports.org/cro/news/2014/04/record-players-were-the-infotainment-systems-of-the-1950s-and-60s/index.htm">"Record players were the infotainment systems of the 1950s and '60s" </a>. Consumer Reports . Retrieved April 16, 2020 . </cite> </li><li><a href="#cite_ref-21">^ </a> <cite><a href="http://ca.complex.com/music/2015/02/the-evolution-of-playing-music-in-your-car/1980s-1990s-the-rise-of-the-cd">"The Evolution of Playing Music in Your Car 1980s-1990s: The Rise of the CD" </a>. Complex CA . Retrieved 2017-01-22 . </cite> </li><li><a href="#cite_ref-22">^ </a> <cite>Williams, Stephen (2011-02-04). <a href="https://www.nytimes.com/2011/02/06/automobiles/06AUDIO.html">"For Car Cassette Decks, Play Time Is Over" </a>. The New York Times . Retrieved 2016-01-14 . </cite> </li><li><a href="#cite_ref-23">^ </a> <cite><a href="http://www.autoguide.com/auto-news/2011/03/the-in-car-cassette-deck-lives-on-for-one-more-year.html">"The in car cassette deck lives on for one more year" </a>. </cite> </li><li><a href="#cite_ref-24">^ </a> <cite>Smith, Ernie (November 6, 2019). <a href="https://www.vice.com/en_us/article/gyz9j7/the-car-cassette-adapter-was-an-unsung-hero-at-the-dawn-of-the-digital-age">"The Car Cassette Adapter Was an Unsung Hero at the Dawn of the Digital Age" </a>. </cite> </li><li><a href="#cite_ref-25">^ </a> <cite>Peachey, Colin (1 October 2013). <a href="https://www.automotive-iq.com/alternative-powertrains/interviews/noise-optimization-technology-with-colin-peachey-o">"Noise Optimization Technology with Colin Peachey of Lotus Engineering" </a>. Automotive IQ. Retrieved 25 March 2021 . </cite> </li><li><a href="#cite_ref-26">^ </a> <cite>Filipponio, Frank (16 April 2009). <a href="https://www.autoblog.com/2009/04/16/lotus-and-harman-partner-on-noise-cancelling-noise-creating-tec/">"Lotus and Harman partner on noise-cancelling, noise-creating tech" </a>. Autoblog. Retrieved 25 March 2021 . </cite> </li><li><a href="#cite_ref-27">^ </a> <cite>Peachey, Colin (October 7, 2013). <a href="https://www.automotive-iq.com/alternative-powertrains/interviews/active-noise-control-with-colin-peachey-of-lotus-e">"Active Noise Control with Colin Peachey of Lotus Engineering" </a>. Automotive IQ . Retrieved 25 March 2021 . </cite> </li><li><a href="#cite_ref-28">^ </a> <cite><a href="http://beta.usatoday.com/story/money/cars/driveon/2012/09/26/cars-noise-cancellation-technology/1590703/">"Automakers shush cars with noise cancellation technology" </a>. USA Today . </cite> </li><li><a href="#cite_ref-29">^ </a> <cite><a href="http://what-when-how.com/automobile/adaptive-noise-control-automobile/">"Adaptive Noise Control (Automobile)" </a>. what-when-how.com . </cite> </li><li><a href="#cite_ref-30">^ </a> <cite>Harwell, Drew (2015-01-21). <a href="https://www.washingtonpost.com/business/economy/americas-best-selling-cars-and-trucks-are-built-on-lies-the-rise-of-fake-engine-noise/2015/01/21/6db09a10-a0ba-11e4-b146-577832eafcb4_story.html">"America's best-selling cars and trucks are built on lies: The rise of fake engine noise" </a>. The Washington Post . Retrieved 2016-01-16 . </cite> </li><li><a href="#cite_ref-31">^ </a> <cite><a href="https://carfragments.com/best-car-speakers/">"Car Speakers" </a>. Car Fragments . 2020-10-18. Retrieved 2021-03-11 . </cite> </li><li><a href="#cite_ref-32">^ </a> <cite><a href="http://www.popularmechanics.com/cars/a7923/the-rise-of-the-fake-engine-roar-11291754/">"The Rise of the Fake Engine Roar" </a>. Popular Mechanics. 2012-08-02. Retrieved 2016-01-16 . </cite> </li><li><a href="#cite_ref-33">^ </a> <cite><a href="https://web.archive.org/web/20150219064546/http://noisefree.org/boomcars.php">"Boom Cars, Noise Free America" </a>. Noisefree.org . Archived from <a href="https://noisefree.org/boomcars.php">the original </a>on February 19, 2015. Retrieved February 18, 2015 . </cite> </li><li><a href="#cite_ref-34">^ </a> <cite>Scott, Michael S. (May 22, 2002). <a href="https://web.archive.org/web/20150923210515/http://www.cops.usdoj.gov/pdf/e05021550.pdf">Loud Car Stereos </a>(PDF) . U.S. Department of Justice, Community Oriented Policing Services. Archived from <a href="https://www.cops.usdoj.gov/pdf/e05021550.pdf">the original </a>(PDF) on September 23, 2015. Retrieved February 18, 2015 . </cite> </li><li><a href="#cite_ref-35">^ </a> <cite><a href="http://www.r-type.org/exhib/aaa0246.htm">"6DS8" </a>. r-type.org . 28 January 2019. Retrieved 25 March 2021 . </cite> </li> </ol>

<ul><li>This page was last edited on 25 March 2021, at 18:43(UTC) . </li><li>Text is available under the <a href="//en.wikipedia.org/wiki/Wikipedia:Text_of_Creative_Commons_Attribution-ShareAlike_3.0_Unported_License">Creative Commons Attribution-ShareAlike License </a><a href="//creativecommons.org/licenses/by-sa/3.0/"> </a>; additional terms may apply. By using this site, you agree to the <a href="//foundation.wikimedia.org/wiki/Terms_of_Use">Terms of Use </a>and <a href="//foundation.wikimedia.org/wiki/Privacy_policy">Privacy Policy </a>. Wikipedia® is a registered trademark of the <a href="//www.wikimediafoundation.org/">Wikimedia Foundation, Inc. </a>, a non-profit organization. </li> </ul>

<ul><li><a href="https://foundation.wikimedia.org/wiki/Privacy_policy">Privacy policy </a> </li><li><a href="/wiki/Wikipedia:About">About Wikipedia </a> </li><li><a href="/wiki/Wikipedia:General_disclaimer">Disclaimers </a> </li><li><a href="//en.wikipedia.org/wiki/Wikipedia:Contact_us">Contact Wikipedia </a> </li><li><a href="//m.wikimediafoundation.org/wiki/Terms_of_Use">Terms of Use </a> </li><li><a href="//en.wikipedia.org/w/index.php?title=Vehicle_audio&mobileaction=toggle_view_desktop">Desktop </a> </li><li><a href="https://www.mediawiki.org/wiki/Special:MyLanguage/How_to_contribute">Developers </a> </li><li><a href="https://stats.wikimedia.org/#/en.wikipedia.org">Statistics </a> </li><li><a href="https://foundation.wikimedia.org/wiki/Cookie_statement">Cookie statement </a> </li> </ul>

Vehicle audio - Wikipedia

When were radios first fitted in cars?

Other curated ideas on this topic: