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1982-87 GM Wiring Harness

1982-87 GM Wiring Harness-RetroSound
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This harness prevents you from having to cut your vehicle's factory wiring harness when installing your RetroSound radio.

660 Wire Code Chart

Switched Power/Speaker Harness

 Wire Color
Function
Red +12 Volt Accessory
Black Ground
Blue Power Antenna
Empty (none)
White Left Front Speaker +
White/Black Left Front Speaker -
Gray Right Front Speaker +
Gray/Black Right Front Speaker -
Green Left Rear Speaker +
Green/Black Left Rear Speaker -
Violet Right Rear Speaker +
Violet/Black Right Rear Speaker -

 

Constant Power/Illumination Harness

 Wire Color
Function
Yellow +12 Volt Constant
Orange Illumination

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