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

Sunroof Module


Object Number: 753918  Size: MF
(1)Roof Reinforcement
(2)Sunroof Module
(3)Roof Panel
Figure 2:

Upper Console


Object Number: 799781  Size: MF
(1)Upper Console
(2)Sunroof Switch
Figure 3:

Roof With Headliner Removed


Object Number: 813455  Size: MF
(1)C308
(2)Sunroof Motor Connector
(3)Connector C1
(4)Sunroof Module
(5)Connector C2