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Typical Head Unit Wire Harness


The following is a diagram of a typical car stereo head unit wiring harness. The wire colors of the respective functions listed are common throughout the industry and found on most, if not all current name brand head units.



Typical Head Unit Wire Harness
Function Typical Wire Colors
Memory / Constant 12V(+) Yellow
Switch / Accessory Red
Ground Black
Illumination Orange/White
Antenna Remote Blue
Amp Remote Blue/White
Left Front (+) White
Left Front (-) White/Black
Right Front (+) Grey
Right Front (-) Grey/Black
Left Rear (+) Green
Left Rear (-) Green/Black
Right Rear (+) Violet
Right Rear (-) Violet/Black



Car Audio:
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Car Audio Wiring and Relay Diagrams:
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Connecting Additional Devices to Remote Turn Lead
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Radio On Until Door Opened
Stereo to Bridged Mono Switched Outputs
Subwoofer Wiring Wizard for SVC and DVC Speakers
Switching from Series to Parallel and Back
Switching from Stereo to Bridged Mono & Series to Parallel
Typical Head Unit Wire Harness





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BasicsCar AudioCar SecurityCruise ControlsDiodesDoor LocksOhm's LawPassive CrossoversRelaysResistorsSubwoofer Enclosures Search
the12volt.com - Free Technical Information for Mobile Electronics Installers
the12volt.com - Free Technical Information for Mobile Electronics Installers
the12volt.com - Free Technical Information for Mobile Electronics Installers
Application GuideCalculators, Charts, DiagramsDownloads/ManualsFind InstallersForumsGlossarySubwoofer WiringToolsVehicle Wiring Recent Topics
the12volt.com - Free Technical Information for Mobile Electronics Installers, Enthusiasts, and Do-It-Yourselfers since 1999 Donate to the12volt.com