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

Cell Phone/GPS Antenna


Object Number: 827173  Size: LF
(1)Clearance Lamp-LF
(2)Roof Marker Lamp Harness
(3)Clearance Lamp Connector-LF
(4)Cell Phone/GPS Antenna
(5)Roof Lamp-Center Front
(6)Roof Lamp-Center Front
(7)Splice S345
(8)Roof Lamp-Center Front
(9)Splice S303
Figure 2:

Cellular Telephone Microphone


Object Number: 874471  Size: MF
(1)Ambient Air Temperature Assembly-Inside
(2)Cellular Telephone Microphone
(3)B Pillar-Left Side
Figure 3:

OnStar Button Assembly


Object Number: 869267  Size: MF
(1)OnStar Button Assembly w/VCIM
Figure 4:

Vehicle Communication Interface Module


Object Number: 819919  Size: MF
(1)I/P Harness
(2)Vehicle Communication Interface Module
(3)Vehicle Communication Interface Module-C3
(4)Vehicle Communication Interface Module-C2
(5)Vehicle Communication Interface Module-C1