GM Service Manual Online
For 1990-2009 cars only
Table 1: Audio Amplifier (UQ3)
Table 2: Audio Amplifier (U85)
Table 3: Radio (U85)
Table 4: Radio (UX7/UW6/UQ3)
Table 5: Speaker -- LF (U79)
Table 6: Speaker -- LF (U85)
Table 7: Speaker -- LF (UW6/UQ3)
Table 8: Speaker -- LF (UX7)
Table 9: Speaker -- LR (U85)
Table 10: Speaker -- LR (UQ3)
Table 11: Speaker -- LR (UX7/UW6/U79)
Table 12: Speaker -- RF (U79)
Table 13: Speaker -- RF (U85)
Table 14: Speaker -- RF (UW6/UQ3)
Table 15: Speaker -- RF (UX7)
Table 16: Speaker -- RR (U85)
Table 17: Speaker -- RR (UQ3)
Table 18: Speaker -- RR (UX7/UW6/U79)
Table 19: Tweeter -- LF (U85)
Table 20: Tweeter -- LF (UW6/UQ3)
Table 21: Tweeter -- RF (U85)
Table 22: Tweeter -- RF (UW6/UQ3))

Audio Amplifier (UQ3)


Object Number: 73156  Size: CH

Connector Part Information

    • 12110088
    • 24-Way F Micro-Pack 100 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A1-A2

--

--

Not Used

A3

BRN

199

Left Rear Speaker Output (+)

A4

DK BLU

46

Right Rear Speaker Output (+)

A5-A6

--

--

Not Used

A7

DK BLU

46

Right Rear Speaker Output (+)

A8

BRN

199

Left Rear Tweeter Output (+)

A9

BLK

350

Ground

A10-A11

--

--

Not Used

A12

ORN

440

Battery Positive Voltage

B1-B2

--

--

Not Used

B3

YEL

116

Left Rear Speaker Output (-)

B4

LT BLU

115

Right Rear Speaker Output (-)

B5-B6

--

--

Not Used

B7

LT BLU

115

Right Rear Tweeter Output (-)

B8

YEL

116

Left Rear Tweeter Output (-)

B9

DK BLU/WHT

346

Left Subwoofer Speaker Output (+)

B10

LT GRN/BLK

1794

Left Subwoofer Speaker Output (-)

B11

DK GRN

1795

Right Subwoofer Speaker Output (+)

B12

LT BLU/BLK

315

Right Subwoofer Speaker Output (-)

Audio Amplifier (U85)


Object Number: 73222  Size: CH

Connector Part Information

    • 12110115
    • 32-Way F Micro-Pack 100 Series (BLU)

Pin

Wire Color

Circuit No.

Function

E1

LT GRN

200

Right Front Speaker Output (+)

E2

TAN

201

Left Front Speaker Output (+)

E3

GRY

118

Left Front Speaker Output (-)

E4

LT BLU

115

Right Rear Speaker Output (-)

E5

DK BLU

46

Right Rear Speaker Output (+)

E6

BRN

199

Left Rear Speaker Output (+)

E7

YEL

116

Left Rear Speaker Output (-)

E8

BLK

350

Ground

E9

BLK

350

Ground

E10

PNK

314

Radio On Signal

E11

ORN

440

Battery Positive Voltage

E12

ORN

440

Battery Positive Voltage

E13

BLK

1856

Left Front Tweeter Speaker Output (+)

E14

YEL

1956

Left Front Tweeter Speaker Output (-)

E15

DK BLU

1857

Left Front Midrange Speaker Output (+)

E16

LT BLU

1957

Left Front Midrange Speaker Output (-)

F1

DK GRN

117

Right Front Speaker Output (-)

F2

LT GRN

1852

Right Front Tweeter Speaker Output (+)

F3

PPL

1952

Right Front Tweeter Speaker Output (-)

F4

RED

1858

Left Rear Tweeter Speaker Output (+)

F5

PPL

1958

Left Rear Tweeter Speaker Output (-)

F6

DK GRN

1953

Right Front Midrange Speaker Output (+)

F7

ORN

1853

Right Front Midrange Speaker Output (-)

F8

PPL

1672

Gain Control Signal

F9

--

--

Not Used

F10

WHT

1854

Right Rear Tweeter Speaker Output (+)

F11

YEL

1949

Right Rear Tweeter Speaker Output (-)

F12

--

--

Not Used

F13

DK GRN

1795

Right Subwoofer Speaker Output (+)

F14

LT BLU/BLK

315

Right Subwoofer Speaker Output (-)

F15

LT GRN/BLK

1794

Left Subwoofer Speaker Output (-)

F16

DK BLU/WHT

346

Left Subwoofer Speaker Output (+)

Radio (U85)


Object Number: 73156  Size: CH

Connector Part Information

    • 12110088
    • 24-Way F Micro-Pack 100 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A1

PPL

1807

Class 2 Serial Data

A2-A7

--

--

Not Used

A8

TAN

201

Left Front Speaker Output (+)

A9

GRY

118

Left Front Speaker Output (-)

A10

LT BLU

115

Right Rear Speaker Output (-)

A11

DK BLU

46

Right Rear Speaker Output (+)

A12

BLK

350

Ground

B1

ORN

340

Battery Positive Voltage

B2

--

--

Not Used

B3

PNK

314

Radio On Signal

B4

GRY

8

Instrument Panel Lamp Supply Voltage - 1

B5

BLK

250

Ground

B6

PPL

1672

Gain Control Signal

B7

--

--

Not Used

B8

BRN

199

Left Rear Speaker Output (+)

B9

YEL

116

Left Rear Speaker Output (-)

B10

DK GRN

117

Right Front Speaker Output (-)

B11

LT GRN

200

Right Front Speaker Output (+)

B12

--

--

Not Used

Radio (UX7/UW6/UQ3)


Object Number: 73156  Size: CH

Connector Part Information

    • 12110088
    • 24-Way F Micro-Pack 100 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A1

PPL

1807

Class 2 Serial Data

A2-A7

--

--

Not Used

A8

TAN

201

Left Front Speaker Output (+)

A9

GRY

118

Left Front Speaker Output (-)

A10

LT BLU

115

Right Rear Speaker Output (-)

A11

DK BLU

46

Right Rear Speaker Output (+)

A12

BLK

350

Ground

B1

ORN

340

Battery Positive Voltage

B2-B3

--

--

Not Used

B4

GRY

8

Instrument Panel Lamp Supply Voltage - 1

B5

BLK

250

Ground

B6-B7

--

--

Not Used

B8

BRN

199

Left Rear Speaker Output (+)

B9

YEL

116

Left Rear Speaker Output (-)

B10

DK GRN

117

Right Front Speaker Output (-)

B11

LT GRN

200

Right Front Speaker Output (+)

B12

--

--

Not Used

Speaker -- LF (U79)


Object Number: 82383  Size: CH

Connector Part Information

    • 12047662
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

201

Left Front Speaker Output (+)

B

GRY

118

Left Front Speaker Output (-)

Speaker -- LF (U85)


Object Number: 130724  Size: CH

Connector Part Information

    • 12064869
    • 2-Way F Metri-Pack 150 Series (BLU)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

1957

Left Front Midrange Speaker Output (-)

B

DK BLU

1857

Left Front Midrange Speaker Output (+)

Speaker -- LF (UW6/UQ3)


Object Number: 82383  Size: CH

Connector Part Information

    • 12047662
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

118

Left Front Speaker Output (-)

B

TAN

201

Left Front Speaker Output (+)

Speaker -- LF (UX7)


Object Number: 82383  Size: CH

Connector Part Information

    • 12047662
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

118

Left Front Speaker Output (-)

B

TAN

201

Left Front Speaker Output (+)

Speaker -- LR (U85)


Object Number: 130637  Size: CH

Connector Part Information

    • 12064760
    • 4-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

1958

Left Rear Tweeter Speaker Output (-)

B

RED

1858

Left Rear Tweeter Speaker Output (+)

C

LT GRN/BLK

1794

Left Subwoofer Speaker Output (-)

D

DK BLU/WHT

346

Left Subwoofer Speaker Output (+)

Speaker -- LR (UQ3)


Object Number: 39660  Size: CH

Connector Part Information

    • 12047785
    • 4-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

116

Left Rear Speaker Output (-)

B

BRN

199

Left Rear Speaker Output (+)

C

LT GRN/BLK

1794

Left Subwoofer Speaker Output (-)

D

DK BLU/WHT

346

Left Subwoofer Speaker Output (+)

Speaker -- LR (UX7/UW6/U79)


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

116

Left Rear Speaker Output (-)

B

BRN

199

Left Rear Speaker Output (+)

Speaker -- RF (U79)


Object Number: 82383  Size: CH

Connector Part Information

    • 12047662
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

200

Right Front Speaker Output (+)

B

DK GRN

117

Right Front Speaker Output (-)

Speaker -- RF (U85)


Object Number: 130724  Size: CH

Connector Part Information

    • 12064869
    • 2-Way F Metri-Pack 150 Series (BLU)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

1953

Right Front Midrange Speaker Output (+)

B

ORN

1853

Right Front Midrange Speaker Output (-)

Speaker -- RF (UW6/UQ3)


Object Number: 82383  Size: CH

Connector Part Information

    • 12047662
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

117

Right Front Speaker Output (-)

B

LT GRN

200

Right Front Speaker Output (+)

Speaker -- RF (UX7)


Object Number: 82383  Size: CH

Connector Part Information

    • 12047662
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

117

Right Front Speaker Output (-)

B

LT GRN

200

Right Front Speaker Output (+)

Speaker -- RR (U85)


Object Number: 130637  Size: CH

Connector Part Information

    • 12064760
    • 4-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

1949

Right Rear Tweeter Speaker Output (-)

B

WHT

1854

Right Rear Tweeter Speaker Output (+)

C

LT BLU/BLK

315

Right Subwoofer Speaker Output (-)

D

DK GRN

1795

Right Subwoofer Speaker Output (+)

Speaker -- RR (UQ3)


Object Number: 39660  Size: CH

Connector Part Information

    • 12047785
    • 4-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

115

Right Rear Speaker Output (-)

B

DK BLU

46

Right Rear Speaker Output (+)

C

LT BLU/BLK

315

Right Subwoofer Speaker Output (-)

D

DK GRN

1795

Right Subwoofer Speaker Output (+)

Speaker -- RR (UX7/UW6/U79)


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

115

Right Rear Speaker Output (-)

B

DK BLU

46

Right Rear Speaker Output (+)

Tweeter -- LF (U85)


Object Number: 82383  Size: CH

Connector Part Information

    • 12047662
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

1956

Left Front Tweeter Speaker Output (-)

B

BLK

1856

Left Front Tweeter Speaker Output (+)

Tweeter -- LF (UW6/UQ3)


Object Number: 35441  Size: CH

Connector Part Information

    • 12059250
    • 2-Way F Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

GRY

118

Left Front Speaker Output (-)

B

TAN

201

Left Front Speaker Output (+)

Tweeter -- RF (U85)


Object Number: 82383  Size: CH

Connector Part Information

    • 12047662
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

1952

Right Front Tweeter Speaker Output (-)

B

LT GRN

1852

Right Front Tweeter Speaker Output (+)

Tweeter -- RF (UW6/UQ3))


Object Number: 35441  Size: CH

Connector Part Information

    • 12059250
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

117

Right Front Tweeter Speaker Output (-)

B

LT GRN

200

Right Front Tweeter Speaker Output (+)