GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Radio


Object Number: 690719  Size: FS
Master Electrical Component List
Retained Accessory Power (RAP) Description and Operation
LH Door
Star Connectors
Star Connectors
G201
Instrument Panel Electrical Center Bussing (1 of 2)
Figure 2:

Left Door


Object Number: 690724  Size: FS
Master Electrical Component List
Retained Accessory Power (RAP) Description and Operation
RH Door
Radio
G201
Instrument Panel Electrical Center Bussing (1 of 2)
Star Connectors
Figure 3:

Right Door


Object Number: 690742  Size: FS
Master Electrical Component List
Retained Accessory Power (RAP) Description and Operation
LH Door
Instrument Panel Electrical Center Bussing (1 of 2)
Star Connectors
G202