Car Stereo Radio Power Wiring Guide
Car Stereo Wiring Guide
Warning: Disconnect the negative terminal of the battery before beginning any installation
Wire Color Legend
Wire Color | Polarity | Function | |
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Yellow | + | Constant 12 volt power source regardless of key position. |
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Red | + | Accessory 12 volt power source requires turning of the key position. |
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Ground | - | Chassis ground. |
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Orange | + | Illumination wire, provides 0 volts when lights are off and 12 volts when the vehicle exterior lights are on. |
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Orange / White stripe | + | Dimmer wire, provides 0 - 12 volts from the vehicle and is adjustable with interior light dimmer control. |
|
Blue | + | Power antenna, provides 12 volts from the receiver when the FM or AM radio is being used. Turns off on any other source. |
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Blue / White stripe | + | Amplifier turn on, provides 12 volts from the receiver when receiver is turned on. |
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Brown | + | Audio Mute (Not common and not used in most applications). |
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Light Green | - | Parking brake, vehicle provides a ground signal when parking brake is pulled up. |
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Light Violet | + | Reverse trigger (+12 volts when vehicle is placed in reverse) |
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Pink | + | V.S.S. - Vehicle speed sense (PWM signal / square wave) |