How To – Install a new Head Unit (Stereo/Radio)

So you’re ready to install a new head unit into your G-Body? Let’s get to it.

I like clean wires. If you like them too, pick these up:
Metra 70-2677-1 – This is the harness to tie into the vehicle.
Metra 71-1677-1 – This is the harness to tie into the harness from your head unit.

Factory Wiring Colors

Wire ColorFunction
OrangeConstant 12V+ (Battery)
YellowSwitched 12V+ (Ignition)
BlackGround
GrayIllumination
BrownDimmer
PinkAntenna Trigger
TanLeft Front Speaker (+)
GrayLeft Front Speaker (-)
Light GreenRight Front Speaker (+)
Dark GreenRight Front Speaker (-)
BrownLeft Rear Speaker (+)
YellowLeft Rear Speaker (-)
Dark BlueRight Rear Speaker (+)
Light BlueRight Rear Speaker (-)

Stereo Bezels

You can get a G-Body stereo bezel from amazon, ebay, mikesmontes, gbodyparts, etsy etc… (they are not all the same).