GM Service Manual Online
For 1990-2009 cars only
Table 1: C-1 Radio Amplifier (Uplevel Utility)
Table 2: C-2 Radio Amplifier (Uplevel Utility)
Table 3: C-1 Radio
Table 4: C-2 Radio
Table 5: Radio C-3 (Uplevel)
Table 6: Remote CD
Table 7: Rear Seat Audio (RSA)
Table 8: LF Door Speaker (Base)
Table 9: RF Door Speaker (Base)
Table 10: LF Door Speaker,Tweeter (Uplevel)
Table 11: RF Door Speaker,Tweeter (Uplevel)
Table 12: LF Door Speaker (Uplevel)
Table 13: RF Door Speaker (Uplevel)
Table 14: LR Speaker
Table 15: RR Speaker
Table 16: LR/RR Middle Speakers (Uplevel Utility)
Table 17: LR D Pillar Speaker (Suburban Only)
Table 18: RR D Pillar Speaker (Suburban Only)
Table 19: Subwoofer Speaker (Uplevel)

C-1 Radio Amplifier (Uplevel Utility)


Object Number: 73158  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

1794

Subwoofer Speaker Return - Rear

B

DK BLU/WHT

346

Subwoofer Speaker Feed - Rear

C - D

--

--

Not Used

E

ORN

1940

Fused Battery Positive Voltage

F

BLK

1850

Ground

G

DK GRN

1795

Speaker Feed - RR ( D Pillar )

H

LT BLU/BLK

315

Speaker Return - LR ( D Pillar )

C-2 Radio Amplifier (Uplevel Utility)


Object Number: 73156  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A1

DK GRN

117

Speaker Return - RF

A2

LT GRN

200

Speaker Feed - RF

A3

LT BLU

115

Speaker (Mid) Return - RR

A4

DK BLU

46

Speaker (Mid) Feed - RR

A5

ORN

360

Amplifier Feed

A6

PPL

1672

Amplifier Gain Control

A7-A8

--

--

Not Used

A9

LT GRN

1948

Audio Return - RF

A10

LT GRN

512

Audio Signal - RF

A11

BLK

1946

Audio Return - RR

A12

DK BLU

546

Audio Signal - RR

B1

GRY

118

Speaker Tweeter Return - LF

B2

TAN

201

Speaker Tweeter Feed - LF

B3

YEL

116

Speaker (Mid) Return - LR

B4

BRN

199

Speaker (Mid) Signal - LR

B5 -B8

--

--

Not Used

B9

DK GRN

1947

Audio Return - LF

B10

TAN

511

Audio Signal - LF

B11

BRN

1999

Audio Return - LR

B12

BRN

599

Audio Signal - LR

C-1 Radio


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

Speaker Return - LF

1

DK GRN

1957

Audio Return - LF (Uplevel)

2

TAN

201

Speaker Feed - LF

2

TAN

511

Audio Signal - LF (Uplevel)

3

LT GRN

117

Speaker Return - RF

4

LT GRN

200

Speaker Feed - RF

5

BLK

1850

Ground

6

PPL/WHT

1382

Fused Interior Park Lamp

6

BRN

2409

Fused Interior Park Lamp (Suburban/Utility)

7

GRY

8

Dimmer Control

8

ORN

360

Amplifier Feed (Uplevel)

9

DK GRN

1301

Ignition Positive Voltage

10

ORN

340

Battery Positive Voltage

C-2 Radio


Object Number: 62477  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

11

PPL

1672

Gain Control Signal

12

BLK/WHT

372

Remote Audio Return (Rear Seat Audio)

13

DK BLU

1796

Radio Control signal (Rear Seat Audio)

14

--

--

Antenna Signal

15

DK GRN

835

E&C Data

16

DK GRN/WHT

817

VSS Signal Input

17

LT BLU

115

Speaker Return - RR

17

BLK

1946

Speaker Return - RR (Uplevel)

18

DK BLU

46

Speaker Signal - RR

18

DK BLU

546

Speaker Signal - RR (Uplevel)

19

YEL

116

Speaker Return - LR

19

BRN

1999

Audio Return - LR (Uplevel)

20

BRN

199

LR Positive

20

BRN

599

Audio Signal - LR (Uplevel)

Radio C-3 (Uplevel)


Object Number: 62467  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Fu nction

7

PNK

314

Radio Signal On

8

GRY

8

Dimming

9

BARE

2011

Shield Ground

10

DK GRN/WHT

368

Remote Audio Signal - Right In

11

BRN/WHT

367

Remote Radio Signal - Left In

12

BRN/WHT

372

Audio Common

13

BLK

1850

Ground

14

DK GRN

835

E&C Data

15

ORN

340

Fused Battery Positive Voltage

Remote CD


Object Number: 62467  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

7

PNK

314

Radio Signal On

8

GRY

8

Dimming

9

BARE

2011

Shield Ground

10

DK GRN/WHT

368

Right In

10

LT BLU

1405

Remote Audio Player - Right (Luxury Utility)

11

BRN/WHT

367

Left In

11

ORN/BLK

1406

Remote Audio Player - Left (Luxury Utility)

12

BRN/WHT

372

Audio Common

12

LT GRN

1407

Audio Common (Luxury Utility)

13

BLK

1850

Ground

14

DK GRN

835

E&C Data

15

ORN

340

Fused Battery Positive Voltage

Rear Seat Audio (RSA)


Object Number: 73152  Size: CH

Connector Part Information

    • 12110259
    • 16 Way F Micro-Pack 100 Series (GRN)

Pin

Wire Color

Circuit No.

Function

A1

BLK

1946

Speaker Return - RR

A2

DK BLU

546

Speaker Signal - RR

A3

BRN

1999

Speaker Return - LR

A4

BRN

599

Speaker Signal - LR

A5

DK BLU

1796

Radio Control Signal

A6 -A7

--

--

Not Used

A8

DK GRN

1301

Ignition Positive Voltage

B1

BLK

1946

Speaker Return - RR

B2

DK BLU

546

Speaker Return - RR

B3

BRN

1999

Speaker Return - LR

B4

BRN

599

Speaker Signal - LR

B5

BLK/WHT

372

Remote Audio Return (Enable)

B6

BLK

1850

Ground

B7

--

--

Not Used

B8

BRN

2409

Interior Park Lamp

LF Door Speaker (Base)


Object Number: 365973  Size: CH

Connector Part Information

    • 12186847
    • 2 Way F Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

GRY

118

LF Negative

B

TAN

201

LF Positive

RF Door Speaker (Base)


Object Number: 365973  Size: CH

Connector Part Information

    • 12186847
    • 2 Way F Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

117

RF Negative

B

LT GRN

200

RF Positive

LF Door Speaker,Tweeter (Uplevel)


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

LF Negative

B

TAN

201

LF Positive

RF Door Speaker,Tweeter (Uplevel)


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

RF Negative

B

LT GRN

200

RF Positive

LF Door Speaker (Uplevel)


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

LF Negative

B

TAN

201

LF Positive

RF Door Speaker (Uplevel)


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

RF Negative

B

LT GRN

200

RF Positive

LR Speaker


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

LR Negative

B

BRN

199

LR Positive

RR Speaker


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

RR Negative

B

DK BLU

46

RR Positive

LR/RR Middle Speakers (Uplevel 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

LR Negative

B

BRN

199

LR Positive

LR D Pillar Speaker (Suburban Only)


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/BLK

315

LR Negative

B

PNK

2305

LR Positive

RR D Pillar Speaker (Suburban Only)


Object Number: 280768  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

PNK

2305

Speaker - Series Connection

B

DK GRN

1795

RR Positive

Subwoofer Speaker (Uplevel)


Object Number: 153645  Size: CH

Connector Part Information

    • 12129081
    • 2 Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

1794

LR Negative

B

DK BLU/WHT

346

LR Positive