GM Service Manual Online
For 1990-2009 cars only
Table 1: Amplifier Connector C1
Table 2: Amplifier Connector C2
Table 3: Radio (All Except Bravada) Connector C1
Table 4: Radio (All Except Bravada) Connector C2
Table 5: Radio (All Except Bravada) Connector C3 (w/ Remote Tape/CD Player)
Table 6: Radio (Bravada)
Table 7: Radio Antenna, (Power)
Table 8: Radio Speaker, LF (Pickup)
Table 9: Radio Speaker, LF (Utility)
Table 10: Radio Speaker, RF (Pickup)
Table 11: Radio Speaker, RF (Utility)
Table 12: Radio Speaker, Front Side Door, LH
Table 13: Radio Speaker, Front Side Door, RH
Table 14: Radio Speaker, Rear Side Door, LH (4-Door Utility)
Table 15: Radio Speaker, Rear Side Door, RH (4-Door Utility)
Table 16: Radio Speaker, LR (2-Door Utility)
Table 17: Radio Speaker, RR (2-Door Utility)
Table 18: Rear Seat Audio Control (Envoy Only)
Table 19: Redundant Steering Wheel Controls C1
Table 20: Redundant Steering Wheel Controls C2
Table 21: Remote Tape/CD Player

Amplifier Connector C1


Object Number: 73156  Size: CH

Connector Part Information

    • 12110088
    • 24-Way F Micro-Pack 100 Series (LT GRY)

Pin

Wire Color

Circuit No.

Function

A1

DK GRN

145

Switched B+ Input

A2

BRN/WHT

367

Remote Radio Signal - Left Audio (Envoy Only)

A3

BLK/WHT

372

Remote Radio Signal - Left Audio (Envoy Only)

A4

DK GRN/WHT

368

Remote Radio Signal - Right Audio (Envoy Only)

A5

YEL

116

Speaker Return - Left Rear

A6

BRN

199

Speaker Feed - Left Rear

A7

PPL

1952

Speaker Return - Right Front - Tweeter

A8

LT GRN

1852

Speaker Feed - Right Front - Tweeter

A9

DK BLU

46

Speaker Feed - Right Rear

A10

LT BLU

115

Speaker Return - Right Rear

A11

YEL

1956

Speaker Return - Left Front - Tweeter

A12

BLK

1856

Speaker Feed - Left Front - Tweeter

B1

BARE

2011

Drain Wire Return - Left Front Audio

B2

BARE

2012

Drain Wire Return - Left Front Audio

B3

BARE

514

Drain Wire Return - (Envoy Only)

B4

PNK

314

Radio Signal On - (Envoy Only)

B5

TAN

511

Audio Signal - Left Front - Low Level

B6

LT GRN

512

Audio Signal - Right Front - Low Level

B7

BRN

599

Audio Signal - Left Rear - Low Level

B8

DK BLU

546

Audio Signal - Right Rear - Low Level

B9

ORN/BLK

1546

Audio Return - Front - Low Level

B10

DK GRN/WHT

1547

Audio Return - Rear - Low Level

B11-B12

--

--

Not Used

Amplifier Connector C2


Object Number: 73158  Size: CH

Connector Part Information

    • 12110626
    • 8-Way F Metri-Pack 280 Series, Flex Lock (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

1050

Ground

B

--

--

Not Used

C

TAN

201

Speaker Feed - Left Front

D

LT GRN

200

Speaker Feed - Right Front

E

DK GRN

117

Speaker Return - Right Front

F

GRY

118

Speaker Return - Left Front

G

--

--

Not Used

H

ORN

1340

Fuse Output Battery

Radio (All Except Bravada) Connector C1


Object Number: 62435  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

1

GRY

118

Audio Signal - Left Front (w/o Amp)

1

TAN

511

Audio Signal - Left Front (w/ Amp)

2

TAN

201

Audio Signal Left - Front (w/o Amp)

2

ORN/BLK

1546

Audio Return - Front (w/ Amp)

3

DK GRN

117

Audio Signal - Right Front (w/o Amp)

3

LT GRN

512

Audio Signal - Right Front (w/ Amp)

4

LT GRN

200

Audio Signal Right - Front (w/o Amp)

4

BARE

1573

Drain Wire Return - Front Audio (w/ Amp)

5

BLK

1050

Ground

6

PPL/WHT

1382

Illumination Signal

7

GRY

1220

Dimmer Input

8

--

--

Not Used (w/o Amp)

8

DK GRN

145

Switched B+ Input (w/ Amp)

9

DK GRN

1301

Ignition Positive Voltage

10

ORN

340

Battery Positive Voltage

Radio (All Except Bravada) Connector C2


Object Number: 62477  Size: CH

Connector Part Information

    • 12065785
    • 10-Way F Micro-Pack 100 Series (GRY)

Pin

Wire Color

Circuit No.

Function

11

--

--

Not Used

12

PNK

314

RSA Enable (Envoy Only)

13

LT GRN

1011

RSA Signal (Envoy Only)

14

--

--

Not Used (Pick-up)

14

DK BLU

1796

Steering Wheel Controls Signal Input (Utility)

15

DK GRN

835

Diagnostic Signal - Entertainment and Comfort (Envoy Only)

16

DK GRN

389

Vehicle Speed Signal - 4000 Pulses Per Mile

17

LT BLU

115

Speaker Return - Right Rear (w/o Amp)

17

DK BLU

546

Audio Signal - Right Rear (w/ Amp)

18

DK BLU

46

Audio Signal Right - Rear - Low Level (w/o Amp)

18

DK GRN/WHT

1547

Audio Return - Rear - Low Level (w/ Amp)

19

YEL

116

Speaker Return - Left Rear (w/o Amp)

19

BRN

599

Audio Signal - Left Rear - Low Level (w/ Amp)

20

BRN

199

Audio Signal - Left Rear (w/o Amp)

20

BARE

1574

Drain Wire Return - Rear Audio (w/ Amp)

Radio (All Except Bravada) Connector C3 (w/ Remote Tape/CD Player)


Object Number: 62467  Size: CH

Connector Part Information

    • 12064980
    • 9-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

7

LT BLU

1405

Tape Player Signal - Remote - Audio Communication

8

GRY

1220

Dimming Signal (except Envoy)

9

BARE

2011

Drain Wire Return

10

DK GRN/WHT

368

Remote Radio Signal - Right Audio

11

BRN/WHT

367

Remote Radio Signal - Left Audio

12

BLK/ORN

372

Remote Radio Return - Audio Common (Except Envoy)

12

BLK/WHT

372

Remote Radio Return - Audio Common (Envoy)

13

BLK

1050

Ground

14

DK GRN

835

Diagnostic Signal - Entertainment and Comfort

15

ORN

340

Fuse Output - Battery

Radio (Bravada)


Object Number: 73222  Size: CH

Connector Part Information

    • 12110115
    • 32-Way F Micro-Pack 100 Series (Blu)

Pin

Wire Color

Circuit No.

Function

E1

DK GRN

835

Diagnostic Signal - Entertainment and Comfort (w/ Remote Tape/CD Player)

E2

--

--

Not Used

E3

LT BLU

1405

Tape Player Signal - Remote - Audio Communication (w/ Remote Tape/CD Player)

E4-E5

--

--

Not Used

E6

DK BLU

1796

Radio Control Signal - Steering Column (w/ Remote Tape/CD Player)

E7-E8

--

--

Not Used

E9

BLK/WHT

372

Remote Radio Return - Audio (w/ Remote Tape/CD Player)

E10

BRN/WHT

367

Remote Radio Signal - Left Audio (w/ Remote Tape/CD Player)

E11

DK GRN/WHT

368

Remote Radio Signal - Right Audio (w/ Remote Tape/CD Player)

E12

BRN

199

Speaker Feed - Left Rear (w/o Amp)

E12

BRN

599

Audio Signal - Left Rear - Low Level (w/ Amp)

E13

YEL

116

Speaker Return - Left Rear (w/o Amp)

E13

BARE

1574

Drain Wire Return - Rear Audio (w/ Amp)

E14

DK GRN

117

Speaker Feed - Right Front (w/o Amp)

E14

DK GRN/WHT

1547

Audio Return - Rear - Low Level (w/ Amp)

E15

LT GRN

200

Speaker Feed - Right Front (w/o Amp)

E15

DK BLU

546

Audio Signal - Right Rear - Low Level (w/ Amp)

E16

BLK

1050

Ground

F1

ORN

340

Fuse Output - Battery - Type II Fuse

F2

DK GRN

1301

Fuse Output - Retained Accessory

F4

GRY

1220

Fuse Output - Instrument Panel Lamps - Type III Fuse

F5

PPL/WHT

1382

Led Dimming Signal

F6-F10

--

--

Not Used

F11

BARE

701

Drain Wire Return (w/ Remote Tape/CD Player)

F12

TAN

201

Speaker Feed - Left Front (w/o Amp)

F12

TAN

511

Audio Signal - Left Front - Low Level (w/ Amp)

F13

GRY

118

Speaker Return - Left Front (w/o Amp)

F13

BARE

1573

Drain Wire Return - Front Audio

F14

LT BLU

115

Speaker Return - Right Rear (w/o Amp)

F14

ORN/BLK

1546

Audio Return - Front - Low Level

F15

DK BLU

46

Speaker Feed - Right Rear (w/o Amp)

F15

LT GRN

512

Audio Signal - Right Front - Low Level (w/ Amp)

F16

--

--

Not Used

Radio Antenna, (Power)


Object Number: 68730  Size: CH

Connector Part Information

    • 12129615
    • 3-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

1140

Fuse Output - Battery

B

PNK

314

Radio Signal - ON

C

BLK

150

Ground

Radio Speaker, LF (Pickup)


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

Speaker Return - Left Fron

B

TAN

201

Speaker Feed - Left Front

Radio Speaker, LF (Utility)


Object Number: 258301  Size: CH

Connector Part Information

    • 12064778
    • 2-Way M Metri-Pack 150 Series (GRN)

Pin

Wire Color

Circuit No.

Function

A

GRY

118

Speaker Return - Left Front (w/o UQ3)

A

GRY

1956

Speaker Return - Left Front (w/ UQ3)

B

TAN

201

Speaker Feed - Left Front (w/o UQ3)

B

TAN

1856

Speaker Feed - Left Front (w/ UQ3)

Radio Speaker, RF (Pickup)


Object Number: 280768  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

PPL

117

Speaker Return - Right Front

B

LT GRN

200

Speaker Feed - Right Front

Radio Speaker, RF (Utility)


Object Number: 258301  Size: CH

Connector Part Information

    • 12064778
    • 2-Way M Metri-Pack 150 Series (GRN)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

117

Speaker Return - Right Front (w/o UQ3)

A

PPL

1952

Speaker Return - Right Front (w/ UQ3)

B

LT GRN

200

Speaker Feed - Right Front (w/o UQ3)

B

LT GRN

1852

Speaker Feed - Right Front (w/ UQ3)

Radio Speaker, Front Side Door, LH


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

Speaker Return - Left Rear

B

BRN

199

Speaker Feed - Left Rear

Radio Speaker, Front Side Door, RH


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

Speaker Return - Right Rear

B

DK BLU

46

Speaker Feed - Right Rear

Radio Speaker, Rear Side Door, LH (4-Door Utility)


Object Number: 95782  Size: CH

Connector Part Information

    • 12052833
    • 2-Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

116

Speaker Return - Left Rear

B

BRN

199

Speaker Feed - Left Rear

Radio Speaker, Rear Side Door, RH (4-Door Utility)


Object Number: 95782  Size: CH

Connector Part Information

    • 12052833
    • 2-Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

116

Speaker Return - Right Rear

B

BRN

199

Speaker Feed - Right Rear

Radio Speaker, LR (2-Door Utility)


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

Speaker Return - Left Rear

B

BRN

199

Speaker Feed - Left Rear

Radio Speaker, RR (2-Door Utility)


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

Speaker Return - Right Rear

B

DK BLU

46

Speaker Feed - Right Rear

Rear Seat Audio Control (Envoy Only)


Object Number: 73151  Size: CH

Connector Part Information

    • 12064799
    • 12-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

1301

Ignition Positive Voltage

B

BRN

2409

Park Lamps Input

C

BLK

1050

Ground

D

PNK

314

RSA Enable In

E-H

--

--

Not Used

J

DK GRN/WHT

368

Remote Radio Signal - Right Audio

K

BLK/WHT

372

Remote Radio Return - Audio

L

BRN/WHT

367

Remote Radio Signal - Left Audio

M

LT GRN

1011

RSA Signal

Redundant Steering Wheel Controls C1


Object Number: 605511  Size: CH

Connector Part Information

    • 50579405
    • 5-Way Molex Connector (BLK)

Pin

Wire Color

Circuit No.

Function

1

LT GRN

1011

Volume Control Signal - Input

2

BLK

152

Steering Wheel Illumination - Volume Controls - Ground

3

GRY

949

Steering Wheel Illumination - Volume Controls - Feed

4

WHT

--

Volume Controls - Ground

5

YEL

43

Volume Controls - Feed

Redundant Steering Wheel Controls C2


Object Number: 605502  Size: CH

Connector Part Information

    • 50579404
    • 4-Way Molex Connector (BLK)

Pin

Wire Color

Circuit No.

Function

1

WHT

--

Seek Up/Down Preset Feed

2

LT GRN

1011

Seek Up/Down Preset Signal Input

3

GRY

949

Steering Wheel Seek Up/Down Preset Illumination

4

BLK

152

Steering Wheel Illumination Seek Up/Down Preset - Ground

Remote Tape/CD Player


Object Number: 62467  Size: CH

Connector Part Information

    • 12064980
    • 9-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

7

LT BLU

1405

Tape Player Signal - Remote - Audio Communication

8

GRY

1220

Dimming Signal (Except Envoy and Bravada)

9

BARE

514

Drain Wire Return (Except Bravada)

9

BARE

701

Drain Wire Return (Bravada Only)

10

DK GRN/WHT

2011

Remote Radio Signal - Right Audio

11

BRN/WHT

367

Remote Radio Signal - Left Audio

12

BLK/ORN

372

Remote Radio Return - Audio (Except Envoy)

12

BLK/WHT

372

Remote Radio Return - Audio (Envoy Only)

13

BLK

1050

Ground

14

DK GRN

835

Diagnostic Signal - Entertainment and Comfort

15

ORN

340

Battery Positive Voltage