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

Power, Ground, Amplifier and DVD Display Signals


Object Number: 1260640  Size: FS
Master Electrical Component List
Video Entertainment System Description and Operation
Radio and DVD Player Signals
Fuse Block-Underhood : HVAC Blower, Radio/Onstar and CD/DLC - Fuse Block-Left I/P : IGN3
Fuse Block-Right I/P : Rear Wiper/Sunroof - Fuse Block-Left I/P : Wiper, BTSI/BCM/Mirror and Radio
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Interior Lights Dimming Schematics
Park Lamps- Wagon
G191 and G303
Figure 2:

Radio and DVD Player Signals


Object Number: 1260644  Size: FS
Master Electrical Component List
Video Entertainment System Description and Operation
Radio Signals
Power, Ground, Amplifier and DVD Display Signals
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Figure 3:

Radio Signals


Object Number: 1260648  Size: FS
Master Electrical Component List
Video Entertainment System Description and Operation
Radio and DVD Player Signals