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

Radio, Audio Amplifier, A Pillar Speaker and Noise Compensation Microphone


Object Number: 1374793  Size: LF
(1)C308
(2)A Pillar Trim
(3)Speaker - Right A Pillar Tweeter (Left Similar)
(4)Noise Compensation Microphone (U57)
(5)Overhead Console
(6)Noise Compensation Microphone Connector (U57)
(7)Audio Amplifier
(8)Audio Amplifier Connector C1
(9)Audio Amplifier Connector C2
(10)Audio Amplifier Connector C3
(11)Radio
Figure 2:

Speakers


Object Number: 1374794  Size: LF
(1)Speaker - RF Door (LF Similar)
(2)Speaker - RF Door Connector
(3)Door - RF (LF Similar)
(4)Speaker - RR Door (LR Similar)
(5)Door - RR Trim Panel
(6)C322
(7)Speaker - Rear Subwoofer
(8)Rear Shelf Carrier
(9)Dash Pad Trim Panel
(10)Speaker - Front Center (U57)
Figure 3:

Digital Radio Subsystem Components (U2K)


Object Number: 1374795  Size: LF
(1)Digital Radio / Onstar Combination Antenna
(2)Digital Radio Antenna Coax Connectors
(3)Radio Antenna Module
(4)Antenna Bolt
(5)Expansion Sleeve
(6)Antenna Retainer
(7)Digital Radio Receiver Connector
(8)Digital Radio Receiver (U2K)
(9)Digital Radio Receiver (U2K)
(10)Digital Radio Antenna Coax
(11)Digital Radio Antenna Coax Connectors
(12)Speaker - Rear Subwoofer
Figure 4:

Radio Antenna Module and Antennas


Object Number: 1374796  Size: LF
(1)FM Antenna Coax Snap Connector to Radio Front Glass Antenna
(2)RFA Antenna Coax Snap Connector to RFA Rear Glass Antenna
(3)AM/FM Antenna Coax Snap Connector to Radio Rear Glass Antenna (Export Shown, Domestic Similar)
(4)Radio Antenna Module Connector
(5)Radio Antenna Module
(6)VICS FM Coax from Traffic Information Receiver (Export)
(7)FM Antenna Coax from Radio Front Glass Antenna
(8)Radio Antenna Coax to Radio
(9)AM/FM Antenna Coax Snap Connector (Export Shown, Domestic Similar)
(10)RFA Antenna Coax Snap Connector
Figure 5:

Radio Antenna Coax


Object Number: 1374798  Size: LF
(1)Radio Antenna Coax (From Radio Antenna Module to Radio)
(2)C312
(3)C302 (Export w/U2X/U2Y)
(4)A/T Shift Control Assembly (M82)
(5)A/T Shift Lock Control Solenoid Assembly (M82)
(6)A/T Shift Lock Control Solenoid Assembly Connector (M82)
(7)C303
(8)Radio Antenna Coax (From Radio Antenna Module to Radio)
(9)C311
(10)Ground G304
(11)Radio Rear Glass Antenna
(12)Rear Window Defogger Connector C2
(13)Rear Window Defogger Grid
Figure 6:

Steering Wheel Controls


Object Number: 1348855  Size: LF
(1)Turn Signal/Multifunction Switch
(2)Steering Wheel Controls - Left
(3)Inflatable Restraint Steering Wheel Module Connector C1
(4)C208
(5)Inflatable Restraint Steering Wheel Module Connector C2
(6)Steering Wheel Controls - Right
(7)Windshield Wiper/Washer Switch
(8)Ignition Lock Cylinder