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

Instrument Panel Wiring


Object Number: 346485  Size: MF
(1)Rear Wiper/ Washer Switch, Cruise Control ON/ OFF Switch
(2)Instrument Panel Cluster Assembly
(3)Instrument Panel Cluster Connector C1
(4)Instrument Panel Cluster Connector C2
(5)Instrument Panel Cluster Connector C3
(6)Rear Defogger Switch (4-Door)
(7)Left Front Speaker (4-Door)
(8)Illumination Controller/ Power Mirror Switch (4-Door)
(9)C200
(10)C201
(11)S236
(12)C211
(13)C209 (4-Door Only)
(14)S235 S201 S204
(15)S238
(16)S258 S256 S200
(17)Instrument Panel Harness
(18)Data Link Connector-On Board Diagnostics II (DLC-OBD II)
(19)Radio
(20)Cigar Lighter
(21)C208
(22)C213
(23)S205 S221 S225 S226
(24)Audio Alarm Module
(25)C210 (4-Door Only)
(26)Right Front Speaker (4-Door)
Figure 2:

LH Rear Passenger Compartment (4-Door) -- RH Similar


Object Number: 355251  Size: MF
(1)G300 (LH Side Only)
(2)Floor Harness
(3)Rear Speaker
Figure 3:

LH Rear Passenger Compartment (2-Door) -- RH Similar


Object Number: 355256  Size: MF
(1)Rear Speaker
(2)Floor Harness
Figure 4:

Left Bulkhead


Object Number: 346472  Size: MF
(1)C101
(2)C102
(3)G109
(4)Brake Fluid Level Switch Connector
(5)Front Wiper Motor
(6)Main Harness
(7)P200
(8)Noise Supressor Filter
(9)C100 / C103
(10)To Heated Oxygen Sensor (HO2S1)
(11)G101
(12)Distributor