GM Service Manual Online
For 1990-2009 cars only

Radio/Audio System Schematics w/UX8

Figure 1:

Power and Ground (w/UX8)


Object Number: 799495  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Compact Disc (CD) Player
Vehicle Communication Interface Module (VCIM) Microphone, Audio Amplifier
DIMR and Audio Fuses
Radio/Audio Power and Ground
Compact Disc (CD) Player
Instrument Panel Dimming
G201 2 of 3
G201 2 of 3
Class 2 Serial Data (1 of 3)
Class 2 Serial Data (3 of 3)
G301
G301
Figure 2:

Remote Playback Device CD Changer (w/UX8)


Object Number: 799507  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Radio Amplifier
Radio/Audio Power and Ground
Radio/Audio Power and Ground
Entertainment Schematic Icons
Entertainment Schematic Icons
G301
G301
Class 2 Serial Data (1 of 3)
Figure 3:

Audio Amplifer (w/UX8)


Object Number: 799509  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Front Speakers
Compact Disc (CD) Player
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Figure 4:

Front Speakers (w/UX8)


Object Number: 799511  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Rear Speakers
Radio Amplifier
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Figure 5:

Rear Speakers (w/UX8)


Object Number: 799514  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Front Speakers
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons

Radio/Audio System Schematics w/U57

Figure 1:

Power and Ground (w/U57/U3R, U3S, U3Q)


Object Number: 799522  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Digital Radio Receiver (w/U57/U2K)
Rear Speakers
DIMR and Audio Fuses
Remote Playback Device CD Changer (w/U57)
Microphone, Audio Amplifier and Antenna
Instrument Panel Dimming
G201 2 of 3
Class 2 Serial Data (1 of 3)
Class 2 Serial Data (3 of 3)
G201 2 of 3
G301
G301
Figure 2:

Digital Radio Receiver (w/U57/U2K)


Object Number: 799528  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Remote Playback Device CD Changer (w/U57)
Radio/Audio Power and Ground
Class 2 Serial Data (1 of 3)
DIMR and Audio Fuses
Class 2 Serial Data (3 of 3)
DIMR and Audio Fuses
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
G301
G301
Figure 3:

Remote Playback Device -- CD Changer (w/U57)


Object Number: 799530  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Radio Amplifier
Digital Radio Receiver (w/U57/U2K)
Radio/Audio Power and Ground
Class 2 Serial Data (1 of 3)
G301
G301
Entertainment Schematic Icons
Entertainment Schematic Icons
Figure 4:

Audio Amplifier


Object Number: 799533  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Front Speakers
Remote Playback Device CD Changer (w/U57)
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Figure 5:

Front Speakers


Object Number: 799534  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Rear Speakers
Digital Radio Receiver (w/U57/U2K)
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Figure 6:

Rear Speakers


Object Number: 799535  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Front Speakers
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons