GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saab 🢒 2008 🢒 9-7x 🢒 Power and Signal Distribution 🢒 Data Communications 🢒 Radio/Navigation System Schematics
Figure 1:

Power, Ground, Serial Data, and Digital Radio Receiver
Object Number: 1927692 Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Control Module References
Base Radio w/o UQA
Figure 2:

Base Radio w/o UQA
Object Number: 1927701 Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Control Module References
Audio Amplifier Power, Ground, and Premium Radio Low Level Audio Outputs - w/UQA
Power, Ground, Serial Data, and Digital Radio Receiver
Figure 3:

Audio Amplifier Power, Ground, and Premium Radio Low Level Audio Outputs - w/UQA
Object Number: 1927790 Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Control Module References
Premium Radio Amplifier Outputs - w/UQA
Base Radio w/o UQA
Figure 4:

Premium Radio Amplifier Outputs - w/UQA
Object Number: 1927809 Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Control Module References
Steering Wheel Controls
Audio Amplifier Power, Ground, and Premium Radio Low Level Audio Outputs - w/UQA
Figure 5:

Steering Wheel Controls
Object Number: 1927824 Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Control Module References
Premium Radio Amplifier Outputs - w/UQA