Order by 2 PM PST for Next Business Day Shipping!
Fast Shipping to Canada!
Cart 0
COVID-19 is continuing to cause shipping delays with individual carriers. We are still processing orders within 24 hours; however, some carriers experience delays when delivering orders.

Find Your Vehicle


1988-94 GM Wiring Harness

1988-94 GM Wiring Harness-RetroSound
Part Number:

If you are shipping to AU, BE, BR, CH, CZ, DE, FR, GB, JP, NL, NO, NZ, RU, SE, or ZA use our Dealer Locator to find a dealer near you.


This harness prevents you from having to cut your vehicle's factory wiring harness when installing your RetroSound radio.

661 Wire Code Chart

 Wire Color
Function
Red +12 Volt Accessory
Yellow +12 Volt Constant
Black Ground
Blue Power Antenna/Amp Turn-On
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 -

 


More Replacement Parts