GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 HUMMER 🢒 2005 🢒 H2 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E/4L65-E 🢒 Entertainment Connector End Views
Table 1: Audio Amplifier C1
Table 2: Audio Amplifier C2
Table 3: Digital Radio Receiver (U2K)
Table 4: Radio C1
Table 5: Radio C2
Table 6: Radio C3 (UM8)
Table 7: Rear Seat Audio (RSA) Controller
Table 8: Speaker - LF Door
Table 9: Speaker - LF Tweeter
Table 10: Speaker - LR Door
Table 11: Speaker - RF Door
Table 12: Speaker - RF Tweeter
Table 13: Speaker - RR Door
Table 14: Speaker - Left Twiddler (Except SUT)
Table 15: Speaker - Right Twiddler (Except SUT)
Table 16: Speaker - Subwoofer
Table 17: Steering Wheel Control Assembly - Lower Left
Table 18: Steering Wheel Control Assembly - Lower Right
Table 19: Steering Wheel Control Assembly - Upper Left
Table 20: Steering Wheel Control Assembly - Upper Right

Audio Amplifier C1


Object Number: 73156 Size: CH

Connector Part Information
    • 12110088
    • 24-Way F Micro-Pack 100 Series (L-GY)

Pin

Wire Color

Circuit No.

Function

A1-A4

--

--

Not Used

A5

BN

199

Left Rear Speaker Output (+)

A6

YE

116

Left Rear Speaker Output (-)

A7

D-BU

46

Right Rear Speaker Output (+)

A8

L-BU

115

Right Rear Speaker Output (-)

A9

TN

201

Left Front Speaker Output (+)

A10

GY

118

Left Front Speaker Output (-)

A11

L-GN

200

Right Front Speaker Output (+)

A12

D-GN

117

Right Front Speaker Output (-)

B1

GY/BK

2334

Radio Mute Signal

B2

PU

493

Rear Seat Audio Enable Signal

B3

BK

1946

Right Rear Low Level Audio Signal (-)

B4

D-BU

546

Right Rear Low Level Audio Signal (+)

B5

D-GN/WH

1547

Left Rear Low Level Audio Signal (-)

B6

BN

599

Left Rear Low Level Audio Signal (+)

B7

OG/BK

1546

Right Front Low Level Audio Signal (-)

B8

L-GN

512

Right Front Low Level Audio Signal (+)

B9

D-GN

1947

Left Front Low Level Audio Signal (-)

B10

TN

511

Left Front Low Level Audio Signal (+)

B11

PK

314

Radio On Signal

B12

BARE

2099

Drain Wire

Audio Amplifier C2


Object Number: 73158 Size: CH

Connector Part Information
    • 12110626
    • 8-Way F Metri-Pack 280 Series Flexlock (L-GY)

Pin

Wire Color

Circuit No.

Function

A

BK/WH

1851

Ground

B

D-BU/WH

346

Left Subwoofer Speaker Output (+)

C

D-GN

1795

Right Subwoofer Speaker Output (+)

D

--

--

Not Used

E

BARE

2011

Drain Wire

F

L-BU/BK

315

Right Subwoofer Speaker Output (-)

G

L-GN/BK

1794

Left Subwoofer Speaker Output (-)

H

OG

3740

Battery Positive Voltage

Digital Radio Receiver (U2K)


Object Number: 850856 Size: CH

Connector Part Information
    • 15394150
    • 16-Way F Micro 64 (BK)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

BN/WH

367

Left Audio Signal (+)

3

D-GN/WH

368

Right Audio Signal (+)

4-6

--

--

Not Used

7

L-GN

2271

Class 2 Serial Data

8

--

--

Not Used

9

BK/WH

1851

Ground

10

BK/WH

372

Audio Common

11-15

--

--

Not Used

16

OG

340

Battery Positive Voltage

Radio C1


Object Number: 73156 Size: CH

Connector Part Information
    • 12110088
    • 24-Way F Micro-Pack 100 Series (GY)

Pin

Wire Color

Circuit No.

Function

A1

OG

1044

Class 2 Serial Data

A2

--

--

Not Used

A3

PU

493

Rear Seat Audio Enable Signal

A4-A7

--

--

Not Used

A8

TN

511

Left Front Low Level Audio Signal (+)

A9

D-GN

1947

Left Front Low Level Audio Signal (-)

A10

BK

1946

Right Rear Low Level Audio Signal (-)

A11

D-BU

546

Right Rear Low Level Audio Signal (+)

A12

BK/WH

1851

Ground

B1

OG

340

Battery Positive Voltage

B2

--

--

Not Used

B3

PK

314

Radio On Signal

B4-B5

--

--

Not Used

B6

GY/BK

2334

Radio Mute Signal

B7

--

--

Not Used

B8

BN

599

Left Rear Low Level Audio Signal (+)

B9

D-GN/WH

1547

Left Rear Low Level Audio Signal (-)

B10

OG/BK

1546

Right Front Low Level Audio Signal (-)

B11

L-GN

512

Right Front Low Level Audio Signal (+)

B12

--

--

Not Used

Radio C2


Object Number: 73151 Size: CH

Connector Part Information
    • 12064799
    • 12-Way F Micro-Pack 100 Series (BK)

Pin

Wire Color

Circuit No.

Function

A-B

--

--

Not Used

C

BARE

1573

Drain Wire (U2K)

D

--

--

Not Used

E

D-GN/WH

817

Vehicle Speed Signal

F-G

--

--

Not Used

H

D-GN/WH

368

Right Audio Signal (+) (U2K)

J

BN/WH

367

Left Audio Signal (+) (U2K)

K

BK/WH

372

Audio Common (U2K)

L

OG/BK

2061

Navigation Mono Audio Signal (-) (UE9)

M

PK/BK

2062

Navigation Mono Audio Signal (+) (UE9)

Radio C3 (UM8)


Object Number: 1480925 Size: CH

Connector Part Information
    • 6098-2714
    • 1-Way F Coaxial Connector (L-GN)

Pin

Wire Color

Circuit No.

Function

A

BK

--

Coax

Rear Seat Audio (RSA) Controller


Object Number: 130690 Size: CH

Connector Part Information
    • 12110206
    • 24-Way F Micro-Pack 100 Series (L-BU)

Pin

Wire Color

Circuit No.

Function

A1

L-BU

2288

Class 2 Serial Data

A2

OG

340

Battery Positive Voltage

A3

--

--

Not Used

A4

BK/WH

1851

Ground

A5

BARE

2099

Drain Wire

A6

D-GN/WH

1547

Left Rear Low Level Audio Signal (-)

A7

BK

1946

Right Rear Low Level Audio Signal (-)

A8

D-GN/WH

1547

Left Rear Low Level Audio Signal (-)

A9

BK

1946

Right Rear Low Level Audio Signal (-)

A10-A12

--

--

Not Used

B1-B4

--

--

Not Used

B5

BARE

2099

Drain Wire

B6

BN

599

Left Rear Low Level Audio Signal (+)

B7

D-BU

546

Right Rear Low Level Audio Signal (+)

B8

BN

599

Left Rear Low Level Audio Signal (+)

B9

D-BU

546

Right Rear Low Level Audio Signal (+)

B10-B12

--

--

Not Used

Speaker - LF Door


Object Number: 280768 Size: CH

Connector Part Information
    • 12052832
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

GY

118

Left Front Speaker Output (-)

B

TN

201

Left Front Speaker Output (+)

Speaker - LF Tweeter


Object Number: 795623 Size: CH

Connector Part Information
    • 12110131
    • 2-Way M Metri-Pack 280 Series (WH)

Pin

Wire Color

Circuit No.

Function

A

GY

118

Left Front Speaker Output (-)

B

TN

201

Left Front Speaker Output (+)

Speaker - LR Door


Object Number: 280768 Size: CH

Connector Part Information
    • 12052832
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

YE

116

Left Rear Speaker Output (-)

B

BN

199

Left Rear Speaker Output (+)

Speaker - RF Door


Object Number: 280768 Size: CH

Connector Part Information
    • 12052832
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

D-GN

117

Right Front Speaker Output (-)

B

L-GN

200

Right Front Speaker Output (+)

Speaker - RF Tweeter


Object Number: 795623 Size: CH

Connector Part Information
    • 12110131
    • 2-Way M Metri-Pack 280 Series (WH)

Pin

Wire Color

Circuit No.

Function

A

D-GN

117

Right Front Speaker Output (-)

B

L-GN

200

Right Front Speaker Output (+)

Speaker - RR Door


Object Number: 280768 Size: CH

Connector Part Information
    • 12052832
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

L-BU

115

Right Rear Speaker Output (-)

B

D-BU

46

Right Rear Speaker Output (+)

Speaker - Left Twiddler (Except SUT)


Object Number: 280768 Size: CH

Connector Part Information
    • 12052832
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

YE

116

Left Rear Speaker Output (-)

B

BN

199

Left Rear Speaker Output (+)

Speaker - Right Twiddler (Except SUT)


Object Number: 280768 Size: CH

Connector Part Information
    • 12052832
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

L-BU

115

Right Rear Speaker Output (-)

B

D-BU

46

Right Rear Speaker Output (+)

Speaker - Subwoofer


Object Number: 130637 Size: CH

Connector Part Information
    • 12064760
    • 4-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

L-GN/BK

1794

Left Subwoofer Speaker Output (-)

B

D-BU/WH

346

Left Subwoofer Speaker Output (+)

C

D-GN

1795

Right Subwoofer Speaker Output (+)

D

L-BU/BK

315

Right Subwoofer Speaker Output (-)

Steering Wheel Control Assembly - Lower Left


Object Number: 605502 Size: CH

Connector Part Information
    • 50579404
    • 4-Way F Molex (BLK)

Pin

Wire Color

Circuit No.

Function

1

BN

230

Instrument Panel Lamps Dimming Control

2

YE

1327

DIC Fuel Signal

3

D-BU

894

DIC Toggle Switch Signal

4

BLK

1851

Ground

Steering Wheel Control Assembly - Lower Right


Object Number: 605511 Size: CH

Connector Part Information
    • 50579405
    • 5-Way F Molex (BK)

Pin

Wire Color

Circuit No.

Function

1

BN

230

Instrument Panel Lamps Dimming Control

2

D-GN

1358

DIC Switch Signal

3

OG

1816

DIC Set/Reset Switch Signal

4

BLK

1851

Ground

5

--

--

Not Used

Steering Wheel Control Assembly - Upper Left


Object Number: 605511 Size: CH

Connector Part Information
    • 50579405
    • 5-Way F Molex (BK)

Pin

Wire Color

Circuit No.

Function

1

L-GN

1011

Remote Radio Control Signal

2

BN

230

Instrument Panel Lamps Dimming Control

3

BK

1851

Ground

4

--

--

Not Used

5

L-GN

1011

Remote Radio Control Signal

Steering Wheel Control Assembly - Upper Right


Object Number: 605507 Size: CH

Connector Part Information
    • 50579406
    • 6-Way F Molex (BLK)

Pin

Wire Color

Circuit No.

Function

1

WH

2283

12-Volt Reference

2

L-GN

1011

Remote Radio Control Signal

3

BN

230

Instrument Panel Lamps Dimming Control

4

--

--

Not Used

5

BK

1851

Ground

6

L-GN

1011

Remote Radio Control Signal