GM Service Manual Online
For 1990-2009 cars only
Connector 1: Amplifier
Connector 2: Hands Free Unit
Connector 3: Navigation Unit
Connector 4: Radio X1 (C100/Long Body)
Connector 5: Radio X2 (C100/Long Body)
Connector 6: Radio (C105/Short Body)
Connector 7: Rear Monitor
Connector 8: Speaker - Left Front
Connector 9: Speaker - Left Rear
Connector 10: Speaker - Right Front
Connector 11: Speaker - Right Rear
Connector 12: Subwoofer
Connector 13: Tweeter - Left Front
Connector 14: Tweeter - Left Rear
Connector 15: Tweeter - Right Front
Connector 16: Tweeter - Right Rear

Amplifier


Object Number: 1466978  Size: CH

Connector Part Information

  • OEM: TYCO 368544-1
  • Service: N/A
  • Description: 18-Way F MS-AL Unsealed

Amplifier

Pin

Wire

Circuit

Function

1

BK

--

Ground

2

RD/BK

--

Battery Positive Voltage

3

YE

--

Left Rear Speaker Signal (-)

4

BN

--

Left Rear Speaker (+)

5

D-GN

--

Right Front Speaker Signal  (-)

6

L-GN

--

Right Front Speaker (+)

7

--

--

Not Used

8

YE

--

Front Center Speaker (+)

9

BK

--

Ground

10

RD/WH

--

Battery Positive Voltage

11

--

--

Not Used

12

L-BU

--

Right Rear Speaker Signal (-)

13

D-BU

--

Right Rear Speaker (+)

14

GY

--

Left Front Speaker Signal (-) 1

15

BN

--

Left Front Speaker (+) 1

16-17

--

--

Not Used

18

L-BU

--

Front Center Speaker (-)

Hands Free Unit


Object Number: 1836009  Size: CH

Connector Part Information

  • OEM: KET MG 651563
  • Service: N/A
  • Description: 23-Way F MS-AL Unsealed

Hands Free Unit

Pin

Wire

Circuit

Function

1

D-BU

--

Audio Earpiece Signal

2

--

--

Not Used

3

PK

--

Audio Handset Low Ref

4

GY

--

Cell RF Boost Control Signal

5

YE/BK

--

Cell Mute Signal

6

L-BU/BK

--

Cell Voice Low Ref

7

--

--

Not Used

8

D-BU

--

Cell Voice Signal

9

--

--

Not Used

10

PK

--

Ext Speaker (+)

11

GY/BK

--

Transceiver Low Ref

12

L-GN

--

Handset Volume Control Ground

13

--

--

Not Used

14

D-BU/WH

--

Handset Volume Control Supply

15

--

--

Not Used

16

--

--

Not Used

17

GY/BK

--

Mic (+)

18

GY/BK

--

Mic Signal

19

BK

--

Ground

20

D-GN

--

Cell Mic Low Ref

21

YE

--

Ignition Voltage

22

GY

--

Cell Mic Signal

23

GY

--

Ext Speaker (-)

Navigation Unit


Object Number: 1835996  Size: CH

Connector Part Information

  • OEM: TYCO 368542-1
  • Service: N/A
  • Description: 12-Way F 064 Unsealed

Navigation Unit

Pin

Wire

Circuit

Function

1

RD/WH

--

Battery Positive Voltage

2

BK

--

Ground

3

YE

--

Ignition Voltage

4

D-GN/WH

--

VSS Signal

5-8

--

--

Not Used

9

GY/BK

--

Mic (+)

10

GY/BK

--

Mic Signal

11

BN/WH

--

Serial Data (High)

12

GY/WH

--

Serial Data (High)

Radio X1 (C100/Long Body)


Object Number: 1590072  Size: CH

Connector Part Information

  • OEM: PED 1590072
  • Service: N/A
  • Description: 14-Way F 064+150 Unsealed

Radio X1 (C100/Long Body)

Pin

Wire

Circuit

Function

1

RD/WH

--

Battery Positive Voltage

2

BN

--

Left Front Speaker (+) 1

3

L-GN

--

Right Front Speaker (+) 1

4

PK

--

External Speaker Signal (+)

5

GY

--

External Speaker Signal (-)

6

GY

--

Antenna Motor Up Control

7

YE

--

Backlight Lamp Control

8

BK/WH

--

Signal Ground

9

GY

--

Light Front Speaker Signal (-) 1

10

D-GN

--

Right Front Speaker Signal (-) 1

11

--

--

Not Used

12

BN

--

Remote CD/Cassette Player Supply Voltage

13-14

--

--

Not Used

Radio X2 (C100/Long Body)


Object Number: 850856  Size: CH

Connector Part Information

  • OEM: PED 15394150
  • Service: N/A
  • Description: 16-Way F 064 Unsealed

Radio X2 (C100/Long Body)

Pin

Wire

Circuit

Function

1

GY

--

Cellular Telephone RF Boost Control Signal

2

PK/BK

--

Amplifier Powered Woofer Control (2)

3

D-GN

--

Right Subwoofer Speaker (+)

4

YE/BK

--

Cellular Telephone Mute Signal

5

BN

--

Left Rear Speaker (+)

6

D-BU

--

Right Rear Speaker (+)

7-8

--

--

Not Used

9

PU/WH

--

Amplifier Powered Woofer Control (1)

10

--

--

Not Used

11

L-BU/BK

--

Right Subwoofer Speaker (-)

12

L-GN

--

Remote Radio Control Signal

13

YE

--

Left Rear Speaker Signal (-)

14

L-BU

--

Right Rear Speaker Signal (-)

15

--

--

Not Used

16

YE

--

Accessory Voltage

Radio (C105/Short Body)


Object Number: 1996329  Size: CH

Connector Part Information

  • OEM: FCI 30235101
  • Service: N/A
  • Description: 40-Way Unsealed

Radio (C105/Short Body)

Pin

Wire

Circuit

Function

1

BU

--

Right Rear Speaker (+)

2

L-GN

--

Right Front Speaker (+)

3

BN

--

Left Front Speaker (+)

4

BN

--

Left Rear Speaker (+)

5

L-BU

--

Right Rear Speaker Signal (-)

6

GN

--

Right Front Speaker Signal (-)

7

GY

--

Left Front Speaker Signal (-)

8

YE

--

Left Rear Speaker Signal

9

BN/WH

--

Mid Speed CAN High

10

BN

--

Mid Speed CAN Low

11

YE/BK

--

Cell Phone Mute Signal

12

BK

--

Ground

13

--

--

Not Used

14

L-BU

--

Center Speaker

15

RD/WH

--

Battery Positive Voltage

16

YE

--

Center Speaker

17-33

--

--

Not Used

34

BU

--

Cell Phone Voice Signal

35

--

--

Not Used

36

--

--

Not Used

37

GN/WH

--

EHU

38

--

--

Not Used

39

--

--

Not Used

40

L-BU.BK

--

Cell Phone Voice Signal

Rear Monitor


Object Number: 1835996  Size: CH

Connector Part Information

  • OEM: TYCO 368542-1
  • Service: N/A
  • Description: 12-Way F 064 Unsealed

Rear Monitor

Pin

Wire

Circuit

Function

1

OG

--

12V Reference

2

GY/BK

--

Courtesy Lamp Relay Control

3-4

--

--

Not Used

5

YE

--

Ignition Voltage

6

BK

--

Ground

7-10

--

--

Not Used

11

BK

--

Ground

12

RD/WH

--

Battery Positive Voltage

Speaker - Left Front


Object Number: 1830943  Size: CH

Connector Part Information

  • OEM: KET MG651026
  • Service: N/A
  • Description: 2-Way F 090II Unsealed

Speaker - Left Front

Pin

Wire

Circuit

Function

1

BN

--

Left Front Speaker (+)

2

GY

--

Left Front Speaker Signal (-) (1)

Speaker - Left Rear


Object Number: 1830943  Size: CH

Connector Part Information

  • OEM: KET MG651026
  • Service: N/A
  • Description: 2-Way F 090II Unsealed

Speaker - Left Rear

Pin

Wire

Circuit

Function

1

BN

--

Left Rear Speaker (+)

2

YE

--

Left Rear Speaker Signal (-)

Speaker - Right Front


Object Number: 1830943  Size: CH

Connector Part Information

  • OEM: KET MG651026
  • Service: N/A
  • Description: 2-Way F 090II Unsealed

Speaker - Right Front

Pin

Wire

Circuit

Function

1

L-GN

--

Speaker Feed-Right Front

2

D-GN

--

Speaker Return-Right Front Signal

Speaker - Right Rear


Object Number: 1830943  Size: CH

Connector Part Information

  • OEM: KET MG651026
  • Service: N/A
  • Description: 2-Way F 090II Unsealed

Speaker - Right Rear

Pin

Wire

Circuit

Function

1

D-BU

--

Right Rear Speaker (+)

2

L-BU

--

Right Rear Speaker Signal (-)

Subwoofer


Object Number: 1835142  Size: CH

Connector Part Information

  • OEM: TYCO 368540-1
  • Service: N/A
  • Description: 8-Way F MS-AL Unsealed

Subwoofer

Pin

Wire

Circuit

Function

1

RW

--

Battery Positive Voltage

2

RW

--

Battery Positive Voltage

3

D-GN

--

Right Subwoofer Speaker (+)

4

BK

--

Ground

5

BK

--

Ground

6

PK/BK

--

Amplifier Powered Woofer Control (2)

7

PU/WH

--

Amplifier Powered Woofer Control (1)

8

L-BU/BK

--

Right Subwoofer Speaker (-)

Tweeter - Left Front


Object Number: 1413061  Size: CH

Connector Part Information

  • OEM: KET MG610070
  • Service: N/A
  • Description: 2-Way F 090 Unsealed

Tweeter - Left Front

Pin

Wire

Circuit

Function

1

YE

--

Left Front Tweeter Speaker (-)

2

BN

--

Left Front Tweeter Speaker (+)

Tweeter - Left Rear


Object Number: 1413061  Size: CH

Connector Part Information

  • OEM: KET MG610070
  • Service: N/A
  • Description: 2-Way F 090 Unsealed

Tweeter - Left Rear

Pin

Wire

Circuit

Function

1

PU

--

Left Rear Tweeter Speaker (-)

2

OG

--

Left Rear Tweeter Speaker (+)

Tweeter - Right Front


Object Number: 1413061  Size: CH

Connector Part Information

  • OEM: KET MG610070
  • Service: N/A
  • Description: 2-Way F 090 Unsealed

Tweeter - Right Front

Pin

Wire

Circuit

Function

1

PU

--

Right Front Tweeter Speaker (-)

2

L-GN

--

Right Front Tweeter Speaker (+)

Tweeter - Right Rear


Object Number: 1413061  Size: CH

Connector Part Information

  • OEM: KET MG610070
  • Service: N/A
  • Description: 2-Way F 090 Unsealed

Tweeter - Right Rear

Pin

Wire

Circuit

Function

1

YE

--

Right Rear Tweeter Speaker (-)

2

WH

--

Right Rear Tweeter Speaker (+)