GM Service Manual Online
For 1990-2009 cars only
Connector 1: Amplifier C1 (WBM)
Connector 2: Amplifier C2 (WBM)
Connector 3: Amplifier C3 (WBM)
Connector 4: Digital Radio Receiver (U2K)
Connector 5: Radio C1
Connector 6: Radio C2
Connector 7: Radio C3 (U32)
Connector 8: Speaker - LF
Connector 9: Speaker - LR
Connector 10: Speaker - RF
Connector 11: Speaker - RR
Connector 12: Speaker - LF (Tweeter)
Connector 13: Speaker - RF (Tweeter)
Connector 14: Speaker - Subwoofer (WBM)
Connector 15: Steering Wheel Control Switch - Left
Connector 16: Steering Wheel Control Switch - Right
Connector 17: Video Display (U32)

Amplifier C1 (WBM)


Object Number: 1608393  Size: CH

Connector Part Information

  • OEM: 15465056
  • Service: See Catalog
  • Description: 8-Way F Metri-Pack 280 Series (BK)

Amplifier C1 (WBM)

Pin

Wire Color

Circuit No.

Function

1-2

--

--

Not Used

3

OG

360

Amplifier Control

4

OG

2340

Battery Positive Voltage

5-6

--

--

Not Used

7

L-GN

1011

Amplifier Mute

8

BK

850

Ground

Amplifier C2 (WBM)


Object Number: 888604  Size: CH

Connector Part Information

  • OEM: 7283-5534-60
  • Service: See Catalog
  • Description: 16-Way F 1.5 Series Sealed (GN)

Amplifier C2 (WBM)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

TN

201

LF Speaker Output (+)

3

BN

199

LR Speaker Output (+)

4

D-BU/WH

346

Subwoofer Speaker Coil 2 Output (+)

5

--

--

Not Used

6

L-GN

200

RF Speaker Output (+)

7

D-BU

46

RR Speaker Output (+)

8

D-GN

1795

Subwoofer Speaker Coil 1 Output (+)

9

--

--

Not Used

10

GY

118

LF Speaker Output (-)

11

YE

116

LR Speaker Output (-)

12

L-GN/BK

1794

Subwoofer Speaker Coil 2 Output (-)

13

--

--

Not Used

14

D-GN

117

RF Speaker Output (-)

15

L-BU

115

RR Speaker Output (-)

16

L-BU/BK

315

Subwoofer Speaker Coil 1 Output (-)

Amplifier C3 (WBM)


Object Number: 850856  Size: CH

Connector Part Information

  • OEM: 15394150
  • Service: See Catalog
  • Description: 16-Way F Micro-Pack 64 Series (BK)

Amplifier C3 (WBM)

Pin

Wire Color

Circuit No.

Function

1

TN

201

LF Speaker Output (+)

2

L-GN

200

RF Speaker Output (+)

3

BN

199

LR Speaker Output (+)

4

D-BU

46

RR Speaker Output (+)

5-8

--

--

Not Used

9

GY

118

LF Speaker Output (-)

10

D-GN

117

RF Speaker Output (-)

11

YE

116

LR Speaker Output (-)

12

L-BU

115

RR Speaker Output (-)

13-16

--

--

Not Used

Digital Radio Receiver (U2K)


Object Number: 850856  Size: CH

Connector Part Information

  • OEM: 15416970
  • Service: See Catalog
  • Description: 16-Way F Micro-Pack 64 Series (BK)

Digital Radio Receiver (U2K)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

BN/WH

367

Remote Radio Left Audio Signal

3

D-GN/WH

368

Remote Radio Right Audio Signal

4

--

--

Not Used

5

D-GN

5060

Low Speed GMLAN Serial Data

6-8

--

--

Not Used

9

BK/WH

151

Ground

10

BK/WH

372

Remote Radio Audio Output

11

BARE

813

Drain Wire

12-15

--

--

Not Used

16

OG

440

Battery Positive Voltage

Radio C1


Object Number: 1590072  Size: CH

Connector Part Information

  • OEM: 15464950
  • Service: See Catalog
  • Description: 14-Way F Micro-Pack 150 Series (BK)

Radio C1

Pin

Wire Color

Circuit No.

Function

1

OG

2140

Battery Positive Voltage

2

GY

8

I/P Lamps Dimmer Switch Signal

3

--

--

Not Used

4

D-GN

117

RF Speaker Output (-)

5

L-GN

200

RF Speaker Output (+)

6

GY

118

LF Speaker Output (-)

7

TN

201

LF Speaker Output (+)

8

BK/WH

151

Ground

9

D-GN

5060

Low Speed GMLAN Serial Data

10

D-GN

5060

Low Speed GMLAN Serial Data

11

D-BU

1796

Remote Radio Control Supply Voltage

12-13

--

--

Not Used

14

YE

43

Accessory Voltage

Radio C2


Object Number: 850856  Size: CH

Connector Part Information

  • OEM: 15394150
  • Service: See Catalog
  • Description: 16-Way F Micro-Pack 64 Series (BK)

Radio C2

Pin

Wire Color

Circuit No.

Function

1

BN/WH

367

Left Audio Signal (+)

2

D-GN/WH

368

Right Audio Signal (+)

3

OG

360

Amplifier Control

4

D-BU

46

RR Speaker Output (+)

5

L-BU

115

RR Speaker Output (-)

6

BN

199

LR Speaker Output (+)

7

YE

116

LR Speaker Output (-)

8

PK/BK

2062

Navigation Mono Audio Signal (+)

9

BK/WH

372

Audio Common

10

YE/BK

693

Mute Signal

11

BK/WH

151

Ground

12

BN

9

Park Lamps Supply Voltage

13

--

--

Not Used

14

WH/BK

644

10-Volt Reference

15

L-GN

1011

Amplifier Mute (WBM)

16

OG/BK

2061

Navigation Mono Audio Signal (-)

Radio C3 (U32)


Object Number: 1277256  Size: CH

Connector Part Information

  • OEM: 175966-2
  • Service: See Catalog
  • Description: 16-Way M Multi-Lock (BK)

Radio C3 (U32)

Pin

Wire Color

Circuit No.

Function

1

L-BU

5826

Audio Signal - Left

2

WH

5828

Audio Signal - Right

3

BARE

514

Drain Wire

4

YE/BK

5334

Video Signal (+)

5

BK/WH

151

Ground

6

PK

2060

Video Detection Signal

7

GY

605

5-Volt Reference

8

OG

2140

Battery Positive Voltage

9

BN/WH

2506

Audio Return Signal

10

BARE

701

Drain Wire

11

BARE

5818

Drain Wire

12

WH/BK

5335

Video Signal (-)

13

YE/RD

6791

DVD Control Signal

14

D-BU

6792

DVD Head to Display Serial Data

15

D-BU/WH

6793

Display to DVD Head Serial Data

16

OG

2140

Battery Positive Voltage

Speaker - LF


Object Number: 1282875  Size: CH

Connector Part Information

  • OEM: 12186719
  • Service: See Catalog
  • Description: 2-Way F (BK)

Speaker - LF

Pin

Wire Color

Circuit No.

Function

1

TN

201

LF Speaker Output (+)

2

GY

118

LF Speaker Output (-)

Speaker - LR


Object Number: 1282875  Size: CH

Connector Part Information

  • OEM: 12186719
  • Service: See Catalog
  • Description: 2-Way F (BK)

Speaker - LR

Pin

Wire Color

Circuit No.

Function

1

YE

116

LR Speaker Output (-)

2

BN

199

LR Speaker Output (+)

Speaker - RF


Object Number: 1282875  Size: CH

Connector Part Information

  • OEM: 12186719
  • Service: See Catalog
  • Description: 2-Way F (BK)

Speaker - RF

Pin

Wire Color

Circuit No.

Function

1

L-GN

200

RF Speaker Output (+)

2

D-GN

117

RF Speaker Output (-)

Speaker - RR


Object Number: 1282875  Size: CH

Connector Part Information

  • OEM: 12186719
  • Service: See Catalog
  • Description: 2-Way F (BK)

Speaker - RR

Pin

Wire Color

Circuit No.

Function

1

D-BU

46

RR Speaker Output (+)

2

L-BU

115

RR Speaker Output (-)

Speaker - LF (Tweeter)


Object Number: 1282877  Size: CH

Connector Part Information

  • OEM: 15305566
  • Service: See Catalog
  • Description: 2-Way F (NA)

Speaker - LF (Tweeter)

Pin

Wire Color

Circuit No.

Function

1

GY

118

LF Speaker Output (-)

2

TN

201

LF Speaker Output (+)

Speaker - RF (Tweeter)


Object Number: 1282877  Size: CH

Connector Part Information

  • OEM: 15305566
  • Service: See Catalog
  • Description: 2-Way F (NA)

Speaker - RF (Tweeter)

Pin

Wire Color

Circuit No.

Function

1

D-GN

117

RF Speaker Output (-)

2

L-GN

200

RF Speaker Output (+)

Speaker - Subwoofer (WBM)


Object Number: 130637  Size: CH

Connector Part Information

  • OEM: 12064760
  • Service: See Catalog
  • Description: 4-Way F Metri-Pack 150 Series (BK)

Speaker - Subwoofer (WBM)

Pin

Wire Color

Circuit No.

Function

A

L-GN/BK

1794

Subwoofer Speaker Coil 2 Output (-)

B

D-BU/WH

346

Subwoofer Speaker Coil 2 Output (+)

C

L-BU/BK

315

Subwoofer Speaker Coil 1 Output (-)

D

D-GN

1795

Subwoofer Speaker Coil 1 Output (+)

Steering Wheel Control Switch - Left


Object Number: 1333392  Size: CH

Connector Part Information

  • OEM: 50-57-9407
  • Service: See Catalog
  • Description: 7-Way F Molex (BK)

Steering Wheel Control Switch - Left

Pin

Wire Color

Circuit Number

Function

1

--

--

Not Used

2

GY

397

Cruise On/Off Switch Signal

3

GY

8

I/P Lamps Supply Voltage

4

PK

1339

Ignition 1 Voltage

5

GY/BK

87

Cruise Resume/Accel Switch Signal

6

D-BU

84

Cruise Set/Coast Switch Signal

7

BK/WH

151

Ground

Steering Wheel Control Switch - Right


Object Number: 605502  Size: CH

Connector Part Information

  • OEM: 50-57-9404
  • Service: See Catalog
  • Description: 4-Way F Molex (BK)

Steering Wheel Control Switch - Right

Pin

Wire Color

Circuit Number

Function

1

BK/WH

151

Ground

2

WH/BK

644

10-Volt Reference

3

GY

8

I/P Lamps Supply Voltage

4

D-BU

1796

Remote Radio Control Supply Voltage

Video Display (U32)


Object Number: 1333229  Size: CH

Connector Part Information

  • OEM: XADRP-16V
  • Service: See Catalog
  • Description: 16-Way F Multi-Lock (BK)

Video Display (U32)

Pin

Wire Color

Circuit No.

Function

1

L-BU

5826

Audio Signal - Left

2

WH

5828

Audio Signal - Right

3

BARE

514

Drain Wire

4

YE/BK

5334

Video Signal (+)

5

BK/WH

151

Ground

6

PK

2060

DVD Detection Signal

7

GY

605

5-Volt Reference

8

OG

2140

Battery Positive Voltage

9

BN/WH

2506

Audio Return Signal

10

BARE

701

Drain Wire

11

BARE

5818

Drain Wire

12

WH/BK

5335

Video Signal (-)

13

YE/RD

6791

DVD Control Signal

14

D-GN

6792

DVD Head to Display Serial Data

15

OG

6793

Display to DVD Head Serial Data

16

OG

2140

Battery Positive Voltage