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

Below the Center of the IP


Object Number: 264436  Size: LF
(1)Radio
(2)HVAC Control Assembly
(3)Cassette Player
Figure 2:

Right Side of the Passenger Compartment, Rear Package Shelf


Object Number: 264446  Size: LF
(1)Rear Defogger Grid Connector
(2)Speaker Connector, Left Rear
(3)Rear Compartment Courtesy Lamp Connector
(4)Remote Control Door Lock Receiver (RFA) Connector
(5)Speaker Connector, Right Rear
Figure 3:

AMP ASM--Subwoofer


Object Number: 328295  Size: MF
(1)Amplifier