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

Radio Power, Ground, DLC and Audio Communications


Object Number: 1388082  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Control Module References
Radio/Audio System - Speakers - w/UX8
Fuse Block Left Rear Bussing
Fuse Block Right Rear: Radio/Onstar, RT Turn Signal, Canister Vent and RF Heated /Vented Seat Fuses; Window Motors Circuit Breaker
Entertainment Schematic Icons
Entertainment Schematic Icons
GMLAN Low Speed 1 of 2
GMLAN Low Speed 2 of 2
G402 (2 of 2)
Figure 2:

Speakers - w/UX8


Object Number: 1388085  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Control Module References
Radio/Audio System - Speakers (w/UY5) (1 of 3)
Radio Power, Ground, DLC and Audio Communications
Power, Ground, VCIM, ISRVM
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
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Figure 3:

Speakers (w/UY5) 1 of 3


Object Number: 1388086  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Control Module References
Radio/Audio System - Speakers (w/UY5) (2 of 3)
Radio/Audio System - Speakers - w/UX8
Traffic Information Receiver (VICS) Module - Japan
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
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
Entertainment Schematic Icons
Entertainment Schematic Icons
Figure 4:

Speakers (w/UY5) 2 of 3


Object Number: 1388087  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Control Module References
Radio/Audio System - Speakers Bose (w/UY5) (3 of 3)
Radio/Audio System - Speakers (w/UY5) (1 of 3)
Fuse Block Left Rear Bussing
Power, Ground, VCIM, ISRVM
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Fuse Block Left Rear: TV/VICS, ELC SOL, ESC Module, Driver Door Module, Rear Door Module, Theft/Shifter and AMP Fuses
Fuse Block Right Rear: LT Turn Signal, RIM(1), Rear Fog Lamp, FT Passenger Door Module, Heated Steering Column, IGN 1, RIM(2) and Airbag Fuses; Rear Fog Lamp and IGN 1 Relays
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
G401 (1 of 2)
G402 (1 of 2)
G402 (1 of 2)
Figure 5:

Speakers (w/UY5) 3 of 3


Object Number: 1388089  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Control Module References
Radio Antennas, Audio/Video Adapter
Radio/Audio System - Speakers (w/UY5) (2 of 3)
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Entertainment Schematic Icons
Figure 6:

Radio Antennas, Audio/Video Adapter


Object Number: 1388090  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Control Module References
Digital Radio Receiver - w/U2K
Radio/Audio System - Speakers Bose (w/UY5) (3 of 3)
Figure 7:

Digital Radio Receiver - w/U2K


Object Number: 1388092  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Control Module References
Microphone, VSS and GPS Antenna
Radio Antennas, Audio/Video Adapter
Fuse Block Right Rear: Radio/Onstar, RT Turn Signal, Canister Vent and RF Heated /Vented Seat Fuses; Window Motors Circuit Breaker
Entertainment Schematic Icons
Entertainment Schematic Icons
GMLAN Low Speed 1 of 2
G401 (1 of 2)
Figure 8:

Microphone, VSS and GPS Antenna


Object Number: 1388091  Size: FS
Master Electrical Component List
Navigation System Description and Operation
Control Module References
TV Tuner Assembly - Export
Navigation System Schematic Icons
Navigation System Schematic Icons
Navigation System Schematic Icons
Rear Parking Assist Schematics
Automatic Headlamp Dimming Signals, VSS (TT6)