GM Service Manual Online
For 1990-2009 cars only
Table 1: Digital Radio Receiver (U2K)
Table 2: Radio C1
Table 3: Radio C2
Table 4: Speaker - LF Door
Table 5: Speaker - LF Door Tweeter (UQ2)
Table 6: Speaker - LR Door (Extended/Crew Cab)
Table 7: Speaker - RF Door
Table 8: Speaker - RF Door Tweeter (UQ2)
Table 9: Speaker - RR Door (Extended/Crew Cab)

Digital Radio Receiver (U2K)


Object Number: 850856  Size: CH

Connector Part Information

    • 15394150
    • 16-Way F ASM (WH)

Pin

Wire Color

Circuit Number

Function

1

--

--

Not Used

2

BN/WH

367

Remote Playback Device Left Audio Signal

3

D-GN/WH

368

Remote Playback Device Right Audio Signal

4-6

--

--

Not Used

7

PU

1807

Class 2 Serial Data

8

--

--

Not Used

9

BK/WH

1151

Ground

10

BK/WH

372

Remote Playback Device Audio Common Signal

11-15

--

--

Not Used

16

OG

1140

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 Number

Function

A1

PU

1807

Class 2 Serial Data

A2

PU

1807

Class 2 Serial Data

A3-A7

--

--

Not Used

A8

GY

118

Left Front Speaker Output (-)

A9

TN

201

Left Front Speaker Output (+)

A10

D-BU

46

Right Rear Speaker Output (+)

A11

L-BU

115

Right Rear Speaker Output (-)

A12

BK/WH

1151

Ground

B1

OG

1140

Battery Positive Voltage

B2-B7

--

--

Not Used

B8

YE

116

Left Rear Speaker Output (-)

B9

BN

199

Left Rear Speaker Output (+)

B10

L-GN

200

Right Front Speaker Output (+)

B11

D-GN

117

Right Front Speaker Output (-)

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 Number

Function

A-B

--

--

Not Used

C

BARE

1573

Drain Wire (U2K)

D-F

--

--

Not Used

G

PU

1807

Class 2 Serial Data

H

D-GN/WH

368

Remote Playback Device Right Audio Signal (U2K)

J

BN/WH

367

Remote Playback Device Left Audio Signal (U2K)

K

BK/WH

372

Remote Playback Device Audio Common Signal (U2K)

L

OG/BK

1406

Remote Playback Device Left Audio Signal (UE1)

M

L-BU

1405

Remote Playback Device Audio Common Signal (UE1)

Speaker - LF Door


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit Number

Function

A

GY

118

Left Front Speaker Output (-)

B

TN

201

Left Front Speaker Output (+)

Speaker - LF Door Tweeter (UQ2)


Object Number: 1334462  Size: CH

Connector Part Information

    • 15427362
    • 2-Way M 090 II (WH)

Pin

Wire Color

Circuit Number

Function

1

GY

118

Left Front Speaker Output (-)

2

TN

201

Left Front Speaker Output (+)

Speaker - LR Door (Extended/Crew Cab)


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit Number

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 Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit Number

Function

A

D-GN

117

Right Front Speaker Output (-)

B

L-GN

200

Right Front Speaker Output (+)

Speaker - RF Door Tweeter (UQ2)


Object Number: 1334462  Size: CH

Connector Part Information

    • 15427362
    • 2-Way M 090 II (WH)

Pin

Wire Color

Circuit Number

Function

1

D-GN

117

Right Front Speaker Output (-)

2

L-GN

200

Right Front Speaker Output (+)

Speaker - RR Door (Extended/Crew Cab)


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit Number

Function

A

YE

115

Right Rear Speaker Output (-)

B

BN

46

Right Rear Speaker Output (+)