GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2005 🢒 Grand Prix 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T65-E 🢒 Entertainment Connector End Views
Table 1: Audio Amplifier - C1 (U87)
Table 2: Audio Amplifier - C2 (U87)
Table 3: Digital Radio Receiver (U2K)
Table 4: Radio - C1
Table 5: Radio - C2
Table 6: Radio, C3 (US4)
Table 7: Speaker - Center
Table 8: Speaker - LF Door
Table 9: Speaker - LF Door Tweeter
Table 10: Speaker - RF Door
Table 11: Speaker - RF Door Tweeter
Table 12: Speaker - LR (UW6)
Table 13: Speaker - LR (U87)
Table 14: Speaker - RR (UW6)
Table 15: Speaker - RR (U87)
Table 16: Steering Wheel Controls - Left
Table 17: Steering Wheel Controls - Right

Audio Amplifier - C1 (U87)


Object Number: 73158 Size: CH

Connector Part Information
    • 15357040
    • 8-Way F Metri-Pack 280 Series (GY)

Pin

Wire Color

Circuit No.

Function

A

L-GN

200

Right Front Speaker Output (+)

B

D-GN

117

Right Front Speaker Output (-)

C

GY

118

Left Front Speaker Output (-)

D

TN

201

Left Front Speaker Output (+)

E

OG

2040

Battery Positive Voltage

F

BK/WH

351

Ground

G

YE

1860

Front Center Speaker Output (+)

H

L-BU

1960

Front Center Speaker Output (-)

Audio Amplifier - C2 (U87)


Object Number: 73156 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A1

GY/BK

2334

Amplifier Present Signal

A2

--

--

Not Used

A3

PU

2232

Radio On Signal

A4

BN/WH

599

Left Rear Low Level Audio Signal (+)

A5

BN

1999

Left Rear Low Level Audio Signal (-)

A6

D-GN

1947

Left Front Low Level Audio Signal (-)

A7

TN

511

Left Front Low Level Audio Signal (+)

A8

TN

927

Amplifier Control

A9

D-BU

46

Right Rear Speaker Output (+)

A10

L-BU

115

Right Rear Speaker Output (-)

A11

BN

199

Left Rear Speaker Output (+)

A12

YE

116

Left Rear Speaker Output (-)

B1

L-GN/BK

1794

Rear Subwoofer Speaker Output (-)

B2

D-BU/WH

346

Rear Subwoofer Speaker Output (+)

B3

--

--

Not Used

B4

BK

1946

Right Rear Low Level Audio Signal (-)

B5

D-BU

546

Right Rear Low Level Audio Signal (+)

B6

L-GN/WH

512

Right Front Low Level Audio Signal (+)

B7

L-GN

1948

Right Front Low Level Audio Signal (-)

B8

--

--

Not Used

B9

BK

1856

Left Front Tweeter Speaker Output (+)

B10

YE

1956

Left Front Tweeter Speaker Output (-)

B11

L-GN

1852

Right Front Tweeter Speaker Output (+)

B12

PU

1952

Right Front Tweeter Speaker Output (-)

Digital Radio Receiver (U2K)


Object Number: 850856 Size: CH

Connector Part Information
    • 15394150
    • 16-Way F ASM (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 (+)

4-8

--

--

Not Used

9

BK/WH

351

Ground

10

BK/WH

372

Audio Common

11

BARE

814

Drain Wire

12-14

--

--

Not Used

15

D-BU

1128

Class 2 Serial Data

16

OG

640

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

1044

OG

Radio Class 2 Serial Data

A2-A5

--

--

Not Used

A6

PU

1375

Remote Radio Control Supply Voltage (UK3)

A7

D-BU

1796

Steering Wheel Controls Signal (UK3)

A8

TN

201

Left Front Speaker Output (+) (UW6)

TN

201

Left Front Low Level Audio Signal (+) (U87)

A9

GY

118

Left Front Speaker Output (-) (UW6)

GY

118

Left Front Low Level Audio Signal (-) (U87)

A10

L-BU

115

Right Rear Speaker Output (-) (UW6)

L-BU

115

Right Rear Low Level Audio Signal (-) (U87)

A11

D-BU

46

Right Rear Speaker Output (+) (UW6)

D-BU

46

Right Rear Low Level Audio Signal (+) (U87)

A12

BK/WH

351

Ground

B1

OG

2040

Battery Positive Voltage

B2

--

--

Not Used

B3

PU

2232

Radio On Signal

B4

GY

8

Instrument Panel Lamp Supply Voltage

B5

BK

150

Ground (w/o US4)

B6

GY/BK

2334

Amplifier Present Signal (U87 w/o US4)

TN

927

Amplifier Control (U87 and US4)

B7

--

--

Not Used

B8

BN

199

Left Rear Speaker Output (+) (UW6)

BN

199

Left Rear Low Level Audio Signal (+) (U87)

B9

YE

116

Left Rear Speaker Output (-) (UW6)

YE

116

Left Rear Low Level Audio Signal (-) (U87)

B10

D-GN

117

Right Front Speaker Output (-) (UW6)

D-GN

117

Right Front Low Level Audio Signal (-) (U87)

B11

L-GN

200

Right Front Speaker Output (+) (UW6)

L-GN

200

Right Front Low Level Audio Signal (+) (U87)

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-C

--

--

Not Used

D

D-GN

389

Vehicle Speed Signal (US4)

E

--

--

Not Used

F

TN

927

Amplifier Control (U87, w/o US4)

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

L-BU

1405

Audio Common (UE1)

M

OG/BK

1406

Left Audio Signal (+) (UE1)

Radio, C3 (US4)


Object Number: 1542144 Size: CH

Connector Part Information
    • 1376352-1
    • 8-Way F AMP 025 Series I/O Connector

Pin

Wire Color

Circuit No.

Function

1-2

--

--

Not Used

3

GY

655

Cellular Microphone Signal (w/o UE1)

PK

5149

Cellular Microphone Signal (UE1)

4

--

--

Not Used

5

BARE

1705

Shielded Ground

PK/BK

5152

Cellular Microphone Return

6-8

--

--

Not Used

Speaker - Center


Object Number: 82383 Size: CH

Connector Part Information
    • 12047662
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

L-BU

1960

Front Center Speaker Output (-)

B

YE

1860

Front Center Speaker Output (+)

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 Door Tweeter


Object Number: 766913 Size: CH

Connector Part Information
    • 12052833
    • 2-Way M Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

YE

1956

Left Front Speaker Output (-) (UW6)

YE

1956

Left Front Tweeter Speaker Output (-) (U87)

B

BK

1856

Left Front Speaker Output (+) (UW6)

BK

1856

Left Front Tweeter Speaker Output (+) (U87)

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 Door Tweeter


Object Number: 766913 Size: CH

Connector Part Information
    • 12052833
    • 2-Way M Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

PU

1952

Right Front Speaker Output (-) (UW6)

PU

1952

Right Front Tweeter Speaker Output (-) (U87)

B

L-GN

1852

Right Front Speaker Output (+) (UW6)

L-GN

1852

Right Front Tweeter Speaker Output (+) (U87)

Speaker - LR (UW6)


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 - LR (U87)


Object Number: 130637 Size: CH

Connector Part Information
    • 12064760
    • 4-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 (+)

C

L-GN/BK

1794

Rear Subwoofer Speaker Output (-)

D

D-BU/WH

346

Rear Subwoofer Speaker Output (+)

Speaker - RR (UW6)


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 - RR (U87)


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-BU

115

Right Rear Speaker Output (-)

B

D-BU

46

Right Rear Speaker Output (+)

C

L-GN/BK

1794

Rear Subwoofer Speaker Output (-)

D

D-BU/WH

346

Rear Subwoofer Speaker Output (+)

Steering Wheel Controls - Left


Object Number: 605502 Size: CH

Connector Part Information
    • 50-57-9404
    • 4-Way F Molex (BK)

Pin

Wire Color

Circuit No.

Function

1

D-BU

1796

Steering Wheel Controls Signal

2

BK

1450

Ground

3

GY/BK

1458

Instrument Panel Lamp Supply Voltage

4

YE

1996

Remote Radio Control Supply Voltage

Steering Wheel Controls - Right


Object Number: 605511 Size: CH

Connector Part Information
    • 50-57-9405
    • 5-Way F Molex (BK)

Pin

Wire Color

Circuit No.

Function

1

D-BU

1796

Steering Wheel Controls Signal

2

YE

1996

Remote Radio Control Supply Voltage

3

BK

1450

Ground

4

GY/BK

1458

Instrument Panel Lamp Supply Voltage

5

PU

1375

Remote Radio Control Supply Voltage