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

Video Power and Ground


Object Number: 1829069  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Control Module References
Audio and Video Circuits
Ignition Switch - ACCY/RUN and RUN/START Bus Bars, and IGN B Fuse
IGN 0, RR WPR, SEO ACCY, TBC ACCY, TBC IGN 0, and WS WPR Fuses
G203 - 3 of 3
Figure 2:

Audio and Video Circuits


Object Number: 1829070  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Control Module References
FM Modulator
Video Power and Ground
Figure 3:

FM Modulator


Object Number: 1807141  Size: FS
Master Electrical Component List
Radio/Audio System Description and Operation
Control Module References
Audio and Video Circuits