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

Doors, Front Passenger Shown, Driver Similar


Object Number: 396755  Size: MF
(1)Speaker - RF Door
(2)C601 (RH), C500 - LH
(3)C501 - LH
(4)P600 - RH, P500 - LH
Figure 2:

IP Wiring Harness, Speaker Connectors


Object Number: 396760  Size: MF
(1)Speaker - RF Connector - Base
(2)Speaker - LF Connector - Base
(3)Fuse Block - I/P Connector - Pickup
(4)Fuse Block - I/P Connector - Utility
(5)Speaker - LF Connector - Uplevel
(6)Speaker - RF Connector - Uplevel
Figure 3:

IP Wiring to Radio


Object Number: 396761  Size: MF
(1)Radio
(2)Radio Antenna Connector
(3)Radio Connector C3 (Chevy/GMC), or Radio Connector (Bravada)
(4)Radio Connector C2
(5)Radio Connector C1
Figure 4:

Radio Antenna Cable


Object Number: 396762  Size: MF
(1)Radio Antenna
(2)Radio Antenna Cable
Figure 5:

Rear Door Details, RH Shown, LH Similar -- 2 and 4-Door Utility


Object Number: 396763  Size: MF
(1)S307 - RH, S306 - LH (4-Door)
(2)Speaker - RR (2-Door)
(3)S305 - RH, S308 - LH (4-Door)
Figure 6:

Door Wiring Harness, RR Shown, LR Similar


Object Number: 396764  Size: MF
(1)Door - RR
(2)Speaker - RR Door
Figure 7:

Speakers - Rear (Extended Cab Pickup)


Object Number: 396765  Size: MF
(1)Speaker - RR
(2)Speaker - LR
Figure 8:

Remote Playback Device - CD Changer and Amplifier


Object Number: 396766  Size: MF
(1)Remote Playback Device - CD Changer (Except Envoy)
(2)Amplifier
(3)Audio Amplifier Connector C2
(4)Audio Amplifier Connector C1
(5)S350 (Envoy)
(6)Remote Playback Device - CD Changer Connector
Figure 9:

Remote Playback Device Jumper Harness


Object Number: 396768  Size: MF
(1)Floor Console
(2)Remote Playback Device (Tape w/Uplevel Audio, CD w/Envoy)
Figure 10:

Steering Wheel Controls


Object Number: 616238  Size: MF
(1)Steering Wheel Controls