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

Radio Power, Ground, Front Speakers, Antenna, and References


Object Number: 1217893  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Rear Speakers w/o UK6, U32, or U2K
Underhood Fuse Block Fuse - IBCM 1 Fuse, Body Control Module Fuses - AIRBAG (BATT), CLUSTER/THEFT, HVAC CTRL (BATT), IGN Sensor, RADIO Fuses and the Ignition Switch
Underhood Fuse Block Fuse - IBCM 1 Fuse, Body Control Module Fuses - AIRBAG (BATT), CLUSTER/THEFT, HVAC CTRL (BATT), IGN Sensor, RADIO Fuses and the Ignition Switch
Low Speed Serial Data
Steering Wheel Controls
OnStar Communications
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
G201
Figure 2:

Rear Speakers W/O UK6, U32, or U2K


Object Number: 1217895  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Rear Seat Audio (RSA) Controller
Radio, Power, Ground, Front Speakers, Antenna, and References
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Figure 3:

Rear Seat Audio (RSA) Controller


Object Number: 1217900  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
DVD Player and Digital Radio Receiver
Rear Speakers w/o UK6, U32, or U2K
Entertainment Schematic Icons
Entertainment Schematic Icons
Seats and Center Console
Backup Lamp Relay, Backup Lamps and License Lamps
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
G304 and G305
Figure 4:

DVD Player and Digital Radio Receiver


Object Number: 1217898  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Rear Seat Audio (RSA) Controller
AUX PWR #2, BACKUPLP, CIG/AUX, HTD MIR, HTD ST, RBEC 1, RKE/XM/DVD/UGD, RR DEFOG, SUN RF Fuses, BACKUP LP and DEFOG Relays
AUX PWR #2, BACKUPLP, CIG/AUX, HTD MIR, HTD ST, RBEC 1, RKE/XM/DVD/UGD, RR DEFOG, SUN RF Fuses, BACKUP LP and DEFOG Relays
AUX PWR #2, BACKUPLP, CIG/AUX, HTD MIR, HTD ST, RBEC 1, RKE/XM/DVD/UGD, RR DEFOG, SUN RF Fuses, BACKUP LP and DEFOG Relays
Low Speed Serial Data
G304 and G305
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons