GM Service Manual Online
For 1990-2009 cars only

Radio/Audio System Schematics Late Production

Figure 1:

Ground, Power, Signals, and References to Cellular Communications and Lighting


Object Number: 879333  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Radio to Speakers-U79 or UX7
Fuse Block-Underhood Fuses: IP BATT1 and IP BATT1A, BCM Fuses: BCM PWR, DASH, LIGHTER, ONSTAR, PARK, PWR OUTLET, PWR WINDOWS, RADIO (ACC.), RADIO (BATT1), SUN ROOF, and WIPER SW
Interior Lights Dimming Schematics
Interior Lights Dimming Schematics
OnStar Schematics
03 A Car Radio/Audio System-Radio to Amplifier to Speakers (UZ6)
03 A Car Radio/Audio System-Radio to Amplifier to Speakers (UZ6)
G201
Figure 2:

Radio to Speakers-U79 or UX7


Object Number: 879335  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Radio to Amplifier to Speakers-UZ6
Ground, Power, Signals, and References to Cellular Communication and Lighting
Entertainment Schematic Icons
Entertainment Schematic Icons
Figure 3:

Radio to Amplifier to Speakers-UZ6


Object Number: 879336  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Radio to Speakers-U79 or UX7
Fuse Block-Underhood Fuses: ABS, ABS1, ABS2, ECM, ECM/TCM, IGN, LH HDLP, PREM AUDIO, RH HDLP, and RUN/CRANK
Ground, Power, Signals, and References to Cellular Communication and Lighting
Entertainment Schematic Icons
Entertainment Schematic Icons
Ground, Power, Signals, and References to Cellular Communication and Lighting
G401

Radio/Audio System Schematics Early Production

Figure 1:

Ground, Power, Signals, and References to Cellular Communication and Lighting


Object Number: 1341848  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
03 A Car Radio/Audio System-Speakers (U79 OR UX7)
Fuse Block-Underhood Fuses: IP BATT1 and IP BATT1A, BCM Fuses: BCM PWR, DASH, LIGHTER, ONSTAR, PARK, PWR OUTLET, PWR WINDOWS, RADIO (ACC.), RADIO (BATT1), SUN ROOF, and WIPER SW
Interior Lights Dimming Schematics
Interior Lights Dimming Schematics
OnStar Schematics
03 A Car Radio/Audio System-Radio to Amplifier to Speakers (UZ6)
03 A Car Radio/Audio System-Radio to Amplifier to Speakers (UZ6)
G201
Figure 2:

Speakers - U79 OR UX7


Object Number: 1341852  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
03 A Car Radio/Audio System-Radio to Amplifier to Speakers (UZ6)
03 A Car Radio/Audio System-Ground,Power,Signals,references to Cellular Communication and Lighting
Entertainment Schematic Icons
Entertainment Schematic Icons
Figure 3:

Radio to Amplifier to Speakers -- UZ6


Object Number: 1341853  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
03 A Car Radio/Audio System-Speakers (U79 OR UX7)
Fuse Block-Underhood Fuses: ABS, ABS1, ABS2, ECM, ECM/TCM, IGN, LH HDLP, PREM AUDIO, RH HDLP, and RUN/CRANK
03 A Car Radio/Audio System-Ground,Power,Signals,references to Cellular Communication and Lighting
Entertainment Schematic Icons
Entertainment Schematic Icons
03 A Car Radio/Audio System-Ground,Power,Signals,references to Cellular Communication and Lighting
G401