GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 HUMMER 🢒 2008 🢒 H2 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Video System Schematics
Figure 1:

Display Power, Ground and Video Signals
Object Number: 1970748 Size: FS
Master Electrical Component List
Navigation System Description and Operation
Control Module References
Audio Signals
Figure 2:

Audio Signals
Object Number: 1995774 Size: FS