GM Service Manual Online
For 1990-2009 cars only
Table 1: Audio Amplifier C1 (U80)
Table 2: Audio Amplifier C2 (U80)
Table 3: Radio
Table 4: Radio (w/U80)
Table 5: Radio Antenna Module
Table 6: Remote Playback Device -- CD Changer
Table 7: Speaker -- LF Door
Table 8: Speaker -- LF Door Tweeter
Table 9: Speaker -- LR
Table 10: Speaker -- LR Door
Table 11: Speaker -- LR Subwoofer (w/u80)
Table 12: Speaker -- RF Door
Table 13: Speaker -- RR
Table 14: Speaker -- RR Door
Table 15: Speaker -- RR Subwoofer (w/U80)

Audio Amplifier C1 (U80)


Object Number: 130689  Size: CH

Connector Part Information

    • 12110244
    • 24-Way F Micro-pack 100 Series (PNK)

Pin

Wire Color

Circuit No.

Function

A1

PNK

608

14 Volt Reference

A2-A6

--

--

Not Used

A7

DK GRN

117

Right Front Speaker Output (-)

A8

LT GRN

200

Right Front Speaker Output (+)

A9

DK BLU

46

Right Rear Speaker Output (+)

A10

LT BLU

115

Right Rear Speaker Output (-)

A11

GRY

118

Left Front Speaker Output (-)

A12

TAN

201

Left Front Speaker Output (+)

B1-B4

--

--

Not Used

B5

TAN

511

Left Front Low Level Audio Signal (+)

B6

LT GRN/BLK

512

Right Front Low Level Audio Signal (+)

B7

BRN/WHT

599

Left Rear Low Level Audio Signal (+)

B8

DK BLU

546

Right Rear Low Level Audio Signal (+)

B9

LT GRN

1948

Right Front Low Level Audio Signal (-)

B10

BLK

1946

Right Rear Low Level Audio Signal (-)

B11

BRN

1999

Left Rear Low Level Audio Signal (-)

B12

DK GRN

1947

Left Front Low Level Audio Signal (-)

Audio Amplifier C2 (U80)


Object Number: 73158  Size: CH

Connector Part Information

    • 12110626
    • 8-Way F Metri-pack 280 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

551

Ground

B

YEL

116

Left Rear Speaker Output (-)

C

DK BLU/WHT

346

Left Subwoofer Speaker Output (+)

D

DK GRN

1795

Right Subwoofer Output (+)

E

LT BLU/BLK

315

Right Subwoofer Output (-)

F

LT GRN/BLK

1794

Left Subwoofer Output (-)

G

BRN

199

Left Rear Speaker Output (+)

H

RED

1242

Battery Positive Voltage

Radio


Object Number: 493173  Size: CH

Connector Part Information

    • 15317985
    • 32-Way M Flex (DK GRY)

Pin*

Wire Color

Circuit No.

Function

A1

FW

1807

Class 2 Serial Data (Primary)

A2

FW

1807

Class 2 Serial Data (Primary)

A3

FW

608

14 Volt Reference

A4

FW

1486

FM Composite Signal

A5-A6

--

--

Not Used

A7

FW

659

Cellular Telephone Voice Low Reference

A8

FW

658

Cellular Telephone Voice Signal

A9

FW

372

Remote Radio Audio Output (-)

A10

FW

367

Remote Radio Audio Output (-)

A11

FW

368

Remote Radio Right Audio Signal

A12

FW

199

Left Rear Speaker Output (+)

A13

FW

116

Left Rear Speaker Output (-)

A14

FW

117

Right Front Speaker Output (-)

A15

FW

200

Right Front Speaker Output (+)

A16

FW

551

Ground

B1

FW

2240

Battery Positive Voltage

B2

FW

2240

Battery Positive Voltage

B3

FW

1487

Antenna Enable Signal

B4

FW

1491

Backlight Lamps Control

B5

FW

450

Ground

B6-B10

--

--

Not Used

B11

FW

514

Ground

B12

FW

201

Left Front Speaker Output (+)

B13

FW

118

Left Front Speaker Output (-)

B14

FW

115

Right Rear Speaker Output (-)

B15

FW

46

Right Rear Speaker Output (+)

B16

FW

551

Ground

* A Pins = Top

B Pins = Bottom

Radio (w/U80)


Object Number: 493173  Size: CH

Connector Part Information

    • 15317985
    • 32-Way M Flex (DK GRY)

Pin*

Wire Color

Circuit No.

Function

A1

FW

1807

Class 2 Serial Data (Primary)

A2

FW

1807

Class 2 Serial Data (Primary)

A3

FW

608

14 Volt Reference

A4

FW

1486

FM Composite Signal

A5-A6

--

--

Not Used

A7

FW

659

Cellular Telephone Voice Low Reference

A8

FW

658

Cellular Telephone Voice Signal

A9

FW

372

Remote Radio Audio Output (-)

A10

FW

367

Remote Radio Left Audio Signal

A11

FW

368

Remote Radio Right Audio Signal

A12

Flex

599

Left Rear Low Level Audio Signal (+)

A13

FW

1999

Left Rear Low Level Audio Signal (-)

A14

FW

1948

Right Front Low Level Audio Signal (-)

A15

Flex

512

Right Front Low Level Audio Signal (+)

A16

FW

551

Ground

B1

FW

2240

Battery Positive Voltage

B2

FW

2240

Battery Positive Voltage

B3

FW

1487

Antenna Enable Signal

B4

FW

1491

Backlight Lamps Control

B5

FW

450

Ground

B6

FW

551

Ground

B7-B10

--

--

Not Used

B11

FW

514

Ground

B12

FW

511

Left Front Low Level Audio Signal (+)

B13

FW

1947

Left Front Low Level Audio Signal (-)

B14

FW

1946

Right Rear Low Level Audio Signal (-)

B15

FW

546

Right Rear Low Level Audio Signal (+)

B16

FW

551

Ground

* A Pins = Top

B Pins = Bottom

Radio Antenna Module


Object Number: 258666  Size: CH

Connector Part Information

    • AMP # 172166-1
    • 3-Way M Metri-pack 150 Series (WHT)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

WHT

1487

Antenna Enable Signal

3

WHT/ORN

1486

FM Composite Signal

Remote Playback Device -- CD Changer


Object Number: 62435  Size: CH

Connector Part Information

    • 12047531
    • 10-Way F Micro-pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

1

BRN/WHT

367

Remote Radio Left Audio Signal

2

DK GRN/WHT

368

Remote Radio Right Audio Signal

3

BLK/WHT

372

Remote Radio Audio Output (-)

4

BARE

1782

Drain Wire

5

ORN

2640

Battery Positive Voltage

6

--

--

Not Used

7

BLK/WHT

551

Ground

8

--

--

Not Used

9

PPL

1807

Class 2 Serial Data (Primary)

10

PPL

1807

Class 2 Serial Data (Primary)

Speaker -- LF Door


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way F Metri-pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

118

Left Front Speaker Output (-)

B

TAN

201

Left Front Speaker Output (+)

Speaker -- LF Door Tweeter


Object Number: 82383  Size: CH

Connector Part Information

    • 12047662
    • 2-Way F Metri-pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

118

Left Front Speaker Output (-)

B

TAN

201

Left Front Speaker Output (+)

Speaker -- LR


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way F Metri-pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

116

Left Rear Speaker Output (+)

B

BRN

199

Left Rear Speaker Output (-)

Speaker -- LR Door


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way F Metri - Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

199

Left Rear Speaker Output (+)

B

YEL

116

Left Rear Speaker Output (-)

Speaker -- LR Subwoofer (w/u80)


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way F Metri - Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

346

Left Subwoofer Speaker Output (+)

B

BRN

1794

Left Subwoofer Speaker Output (-)

Speaker -- RF Door


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way F Metri - Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

117

Right Front Speaker Output (-)

B

LT GRN

200

Right Front Speaker Output (+)

Speaker -- RR


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way F Metri-pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

115

Right Rear Speaker Output (-)

B

DK BLU

46

Right Rear Speaker Output (+)

Speaker -- RR Door


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way F Metri - Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

46

Right Rear Speaker Output (+)

B

YEL

115

Right Rear Speaker Output (-)

Speaker -- RR Subwoofer (w/U80)


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way F Metri - Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

1795

Right Subwoofer Speaker Output (+)

B

DK BLU

315

Right Subwoofer Speaker Output (-)