Hummer OEM Head Unit Pinouts

Factory Hummer radio, navigation and amplifier connector drawings. Match the part number, equipment option and connector keying.

Hummer (2006-2010) H3 amplifier

p/n 15086821, 28001879; 638-02255

Connector overview

X1 7283-9076-30 (15136073) connector
X2 6098-4611 (15134091) connector
X3 6098-4713 (88988652) connector

X1 7283-9076-30 (15136073) connector

Pin Function Wire colour
1 Left Front Low Level Audio Signal (+) TN
2 Left Front Low Level Audio Signal (-) D-GN
3 Left Rear Low Level Audio Signal (-) D-GN/WH
4 Left Rear Low Level Audio Signal (+) BN
5 Radio Mute Signal OG
6 Radio On Signal PK
9 Right Front Low Level Audio Signal (-) OG/BK
10 Right Front Low Level Audio Signal (+) L-GN
11 Right Rear Low Level Audio Signal (+) D-BU
12 Right Rear Low Level Audio Signal (-) BK

X2 6098-4611 (15134091) connector

Pin Function Wire colour
1 Left Front Tweeter Speaker Output (+) BK
2 Left Front Tweeter Speaker Output (-) YE
3 Right Front Tweeter Speaker Output (+) L-GN
4 Right Front Tweeter Speaker Output (-) PU
5 Left Rear Speaker Output (-) YE
6 Left Rear Speaker Output (+) BN
7 Right Rear Speaker Output (-) L-BU
8 Right Rear Speaker Output (+) D-BU
13 Right Front Speaker Output (+) L-GN
14 Right Front Speaker Output (-) D-GN
15 Left Front Speaker Output (+) TN
16 Left Front Speaker Output (-) GY

X3 6098-4713 (88988652) connector

Pin Function Wire colour
1 Battery Positive Voltage OG
2 Ground BK/WH
3 Left Subwoofer Speaker Output (+) D-BU/WH
4 Left Subwoofer Speaker Output (-) L-GN/BK
7 Right Subwoofer Speaker Output (-) L-BU/BK
8 Right Subwoofer Speaker Output (+) D-GN
Hummer (2007-2010) H2 BOSE amplifier

p/n 20801473 (UQS)

Connector overview

X1  6098-4798 (19115652) connector
X2 6098-4611 (15134091) connector
X3, 7283-9076-30 connector
X4 (UQS only), 7283-9078-80 connector

X1  6098-4798 (19115652) connector

Pin Function Wire colour
1 UQS · Left or Rear Subwoofer Speaker Output (+) D-BU/WH
1 UQA · Left Front Speaker Output (-) GY
2 UQS · Left Subwoofer Speaker Output (-) L-GN/BK
2 UQA · Right Subwoofer Speaker Output (-) L-BU/BK
3 UQS · Right Subwoofer Speaker Output (-) L-BU/BK
3 UQA · Left Subwoofer Speaker Output (-) L-GN/BK
4 any · Battery Positive Voltage RD/WH
5 UQA · Left Front Speaker Output (+) TN
6 UQA · Right Subwoofer Speaker Output (+) D-GN
7 UQS · Right Subwoofer Speaker Output (+) D-GN
7 UQA · Left or Rear Subwoofer Speaker Output (+) D-BU/WH
8 any · Ground BK

X2 6098-4611 (15134091) connector

Pin Function Wire colour
1 UQS · Low Speed GMLAN Serial Data D-GN
1 UQA · Right Rear Speaker Output (-) L-BU
2 UQS · Right Rear D - Pillar Speaker Output (-) (SUV) OG
2 UQA · Right Rear Speaker Output (+) D-BU
3 UQS · Right Rear D - Pillar Speaker Output (+) (SUV) TN
3 UQA · Front Center Speaker Output (-) L-BU
4 UQS · Left Front Speaker Output (+) TN
4 UQA · Front Center Speaker Output (+) YE
5 UQS · Left Front Speaker Output (-) GY
5 UQA · Rear D-Pillar Speaker Output (-) (SUV) OG/BK
6 UQS · Right Front Speaker Output (-) D-GN
6 UQA · Rear D-Pillar Speaker Output (+) (SUV) OG
7 UQS · Right Front Speaker Output (+) L-GN
7 UQA · Right Front Speaker Output (-) D-GN
8 UQS · Left Rear Speaker Output (-) YE
8 UQA · Right Front Speaker Output (+) L-GN
10 UQS · Left Rear D - Pillar Speaker Output (-) (SUV) WH
11 UQS · Left Rear D - Pillar Speaker Output (+) (SUV) TN
12 UQS · Front Center Speaker Output (-) L-BU
13 UQS · Front Center Speaker Output (+) YE
14 UQS · Right Rear Speaker Output (-) L-BU
15 UQS · Right Rear Speaker Output (+) D-BU
15 UQA · Left Rear Speaker Output (+) BN
16 UQS · Left Rear Speaker Output (+) BN
16 UQA · Left Rear Speaker Output (-) YE

X3, 7283-9076-30 connector

Pin Function Wire colour
3 UQS · Right Front Low Level Audio Signal (+) L-GN/WH
4 UQS · Right Front Low Level Audio Signal (-) OG/BK
4 UQA · Right Rear Low Level Audio Signal (-) TN
5 UQS · Amplifier Audio Prompt Signal (-) GY
5 UQA · Left Rear Low Level Audio Signal (-) BN
6 UQS · Drain Wire BARE
6 UQA · Right Front Low Level Audio Signal (-) OG/BK
7 UQA · Left Front Low Level Audio Signal (-) D-GN
8 UQA · Remote Enable WH
11 UQS · Left Front Low Level Audio Signal (+) TN
11 UQA · Amplifier Control OG
12 UQS · Left Front Low Level Audio Signal (-) D-GN
12 UQA · Right Rear Low Level Audio Signal (+) D-BU
13 UQS · Amplifier Audio Prompt Signal (+) PU
13 UQA · Left Rear Low Level Audio Signal (+) BN/WH
14 UQS · Noise Compensation Microphone Signal D-GN
14 UQA · Right Front Low Level Audio Signal (+) L-GN/WH
15 UQA · Left Front Low Level Audio Signal (+) TN

X4 (UQS only), 7283-9078-80 connector

Pin Function Wire colour
3 Right Rear Low Level Audio Signal (+) D-BU
4 Right Rear Low Level Audio Signal (-) TN
5 Subwoofer Low Level Audio (+) WH
6 Subwoofer Low Level Audio (-) PK
11 Left Rear Low Level Audio Signal (+) BN/WH
12 Left Rear Low Level Audio Signal (-) BN
13 Center Channel Low Level Audio (+) D-BU
14 Center Channel Low Level Audio (-) OG
GMC (2007-2014), Chevrolet, Hummer H2 Head Unit

p/n 20807044, 25857364, 25894202, 20790838

Connector overview

Radio X1 (OEM 15488568, Service 88988743 connector)
Radio X2 (OEM 15491285, Service 15136073 connector)
Radio X3 (HP2 with U42) (13568239 connector)
Radio X4 (HP2 with UQS or with UVC) (13568240 connector)

Radio X1 (OEM 15488568, Service 88988743 connector)

Pin Function Wire colour
1 Battery Positive Voltage RD/WH
2 Left Front Speaker Output (+) (UQ3) TN
2 Left Front Low Level Audio Signal (+) (UQA or UQS) TN
3 Right Front Speaker Output (+) (UQ3) L-GN
3 Right Front Low Level Audio Signal (+) (UQA or UQS) L-GN/WH
4 Voice Recognition Audio Signal (UE1 with U3R, U3U or UVB) PK
4 Voice Recognition Audio Signal (UVC without UE1) GY
5 Low Reference (UE1) 0.35 PK/BK
5 Low Reference (UVC without UE1) PK/BK
6 Entertainment Remote Enable Signal WH
7 LED Backlight Dimming Control YE
8 Ground BK
9 Left Front Speaker Output (-) (HP2 with UQ3) GY
9 Left Front Speaker Output (-) (with UQ3, except HP2) GY
9 Left Front Low Level Audio Signal (-) (UQA or UQS) D-GN
10 Right Front Speaker Output (-) (HP2 with UQ3) D-GN
10 Right Front Speaker Output (-) (with UQ3, except HP2) D-GN
10 Front Low Level Audio Signal (-) (UQA or UQS) OG/BK
11 Drain Wire (UQA or UQS) BARE
13 Low Speed GMLAN Serial Data D-GN

Radio X2 (OEM 15491285, Service 15136073 connector)

Pin Function Wire colour
1 Remote Radio Left Audio Signal (U2K) BN/WH
2 Remote Radio Right Audio Signal (U2K) D-GN/WH
3 Drain Wire (with UQA, UQS or UK6) BARE
4 DVD Video Signal 2 (+) (DNU) L-GN
5 Left Rear Speaker Output (+) (HP2 with UQ3) BN
5 Left Rear Speaker Output (+) (with UQ3, except HP2) BN
5 Left Rear Low Level Audio Signal (+) (UQA or UQS) BN/WH
6 Right Rear Speaker Output (+) (HP2 with UQ3) D-BU
6 Right Rear Speaker Output (+) (with UQ3, except HP2) D-BU
6 Right Rear Low Level Audio Signal (+) (UQA or UQS) D-BU
7 Cellular Telephone Voice Signal (UE1) D-BU
8 Amplifier Control (with UQA, except Y91) OG
9 Remote Radio Audio Output (-) (U2K) TN/WH
10 Remote Radio Right Audio Signal (U2K) GY
11 Drain Wire (HP2 with U2K) BARE
11 Drain Wire (with U2K, except HP2) BARE
12 DVD Video Signal 2 (-) (DNU) WH
13 Left Rear Speaker Output (-) (HP2 with UQ3) YE
13 Left Rear Speaker Output (-) (with UQ3, except HP2) YE
13 Left Rear Low Level Audio Signal (-) (UQA or UQS) BN
14 Right Rear Speaker Output (-) (HP2 with UQ3) L-BU
14 Right Rear Speaker Output (-) (with UQ3, except HP2) L-BU
14 Right Rear Low Level Audio Signal (-) (UQA or UQS) TN
15 Low Reference (UE1) L-BU/BK
16 Video Mode 2 Signal (DNU) D-GN/WH

Radio X3 (HP2 with U42) (13568239 connector)

Pin Function Wire colour
1 Auxiliary Audio Left Signal YE
2 Auxiliary Audio Right Signal WH
3 Left DVD Audio Signal (+) L-BU
4 Right DVD Audio Signal (+) WH
5 Remote Infra Red Signal (+) OG/BK
6 Video Bright Control PK/BK
7 DVD Video Signal (+) D-GN
8 Auxiliary Video High Signal PU
9 Drain Wire BARE
10 Video Module Signal L-GN/BK
11 DVD Audio Common PU
12 DVD Audio Shield BARE
13 Remote Infra Red Signal (-) TN/WH
14 DVD Video Drain Wire BARE
15 DVD Video Signal (-) WH/BK
16 Video Drain Wire BARE

Radio X4 (HP2 with UQS or with UVC) (13568240 connector)

Pin Function Wire colour
3 Center Channel Low Level Audio Signal (UQS) D-BU
4 Subwoofer Low Level Audio Signal (UQS) WH
5 Vehicle Speed Signal (UVC) D-GN/WH
6 Camera Signal (+) (UVC) PK
7 Camera Signal (-) (UVC) L-BU
8 Amplifier Audio Prompt Signal (+) (UQS) PU
11 Center Channel Low Level Audio Signal (-) (UQS) OG
12 Subwoofer Low Level Audio (-) (UQS) PK
13 Drain Wire (UQS) BARE
15 Drain Wire (UQS) BARE
16 Amplifier Audio Prompt Signal (-) (UQS) GY
Hummer H3 (2006-2013) Head Unit

p/n 15923766, 15261533, 15852201, FA67F10I401

Connector overview

24 pin p/n 12110088 connector
12 pin p/n 12064799 connector

24 pin p/n 12110088 connector

Pin Function Wire colour
A1 Class 2 Serial Data (UE1) PU
A2 Class 2 Serial Data PU
A5 Drain Wire (UQA) BARE
A8 Left Front Speaker Output (+) (UQ3) TN
A8 Left Front Low Level Audio Signal (+) (UQA) TN
A9 Left Front Speaker Output (-) (UQ3) GY
A9 Left Front Low Level Audio Signal (-) (UQA) D-GN
A10 Right Rear Speaker Output (-) (UQ3) L-BU
A10 Right Rear Low Level Audio Signal (-) (UQA) BK
A11 Right Rear Speaker Output (+) (UQ3) D-BU
A11 Right Rear Low Level Audio Signal (+) (UQA) D-BU
A12 Ground BK/WH
B1 Battery Positive Voltage OG
B3 Radio On Signal (UQA) PK
B4 Instrument Panel Lamps Dimmer Switch Signal GY
B5 Ground BK
B6 Radio Mute Signal (UQA) OG
B8 Left Rear Speaker Output (+) (UQ3) BN
B8 Left Rear Low Level Audio Signal (+) (UQA) BN
B9 Left Rear Speaker Output (-) (UQ3) YE
B9 Left Rear Low Level Audio Signal (-) (UQA) D-GN/WH
B10 Right Front Speaker Output (-) (UQ3) D-GN
B10 Right Front Low Level Audio Signal (-) (UQA) OG/BK
B11 Right Front Speaker Output (+) (UQ3) L-GN
B11 Right Front Low Level Audio Signal (+) (UQA) L-GN

12 pin p/n 12064799 connector

Pin Function Wire colour
E Vehicle Speed Signal (UM8) D-GN/WH
G Class 2 Serial Data (U2K) PU
H Radio Audio Signal (+) (U2K) D-GN/WH
J Left Audio Signal (+) (U2K) BN/WH
K Audio Common (U2K) BK/WH
L Remote Playback Device Left Audio Signal (UE1) OG/BK
M Remote Playback Device Audio Common Signal (UE1) PK/BK
Hummer H2 stereo · 32-way connector listing

The 32-way diagram published under the Hummer H2 name matches the 2004 Cadillac DeVille factory radio without U3R, U3S or U3Q, including all cavity assignments and housing 12110115. The exact H2 application remains unverified. The 2003 H2 factory manual documents a 24-way C1 and a 12-way C2.

12110115 · 32-way · Cadillac DeVille reference

Cavity label index. Match the moulded labels on the housing.
F1F2F3F4F5F6F7F8F9F10F11F12F13F14F15F16E1E2E3E4E5E6E7E8E9E10E11E12E13E14E15E16
Cavity Wire colour Circuit ID Function
E1 DK GRN 835 Entertainment and Comfort Serial Data
E2-E3 -- -- Unused
E4 RED 1486 FM Composite Signal
E5 YEL 1491 Backlight Lamps Control
E6 PPL 1807 Class 2 Serial Data
E7 BARE 814 Drain Wire (w/UE1 and U43)
E8 ORN/BLK 2360 Modem Audio Low Reference (w/UE1 and U43)
E9 TAN/BLK 2388 Modem Audio Return Signal (w/UE1 and U43)
E10 BRN/WHT 2387 Modem Audio Transmit Signal (w/UE1 and U43)
E11 BARE 814 Drain Wire (w/UE1 and U43)
E12 TAN 511 Left Front Low Level Audio Signal (+)
E13 DK GRN 1947 Left Front Low Level Audio Signal (-)
E14 BARE 2011 Drain Wire
E15 BARE 2012 Drain Wire
E16 BLK/WHT 651 Ground
F1 ORN 2240 Battery Positive Voltage
F2 -- -- Unused
F3 WHT 1487 Antenna Enable Signal
F4 DK GRN/WHT 817 Vehicle Speed Signal (w/UE1 and U43)
F5 BLK 450 Ground
F6 PPL 1807 Class 2 Serial Data
F7-F10 -- -- Unused
F11 BARE 1792 Drain Wire
F12 PPL/WHT 652 Chime Module Bit 2 Signal
F13 DK BLU/WHT 653 Chime Module Bit 1 Signal
F14 LT GRN 1948 Right Front Low Level Audio Signal (-)
F15 LT GRN/BLK 512 Right Front Low Level Audio Signal (+)
F16 TAN 2610 Cellular Microphone Signal (w/UE1 and U43)

2003 Hummer H2 factory radio C1 · 24-way · 12110088

Cavity Wire colour Circuit ID Function
A1 ORN 1044 Radio Class 2 Serial Data
A2-A7 -- -- Not Used
A8 TAN 511 Left Front Low Level Audio Signal (+)
A9 DK GRN 1947 Left Front Low Level Audio Signal (-)
A10 BLK 1946 Right Rear Low Level Audio Signal (-)
A11 DK BLU 546 Right Rear Low Level Audio Signal (+)
A12 BLK/WHT 1851 Ground
B1 ORN 340 Battery Positive Voltage
B2 -- -- Not Used
B3 GRY 161 Antenna Preamplifier Supply Voltage
B4-B7 -- -- Not Used
B8 BRN 599 Left Rear Low Level Audio Signal (+)
B9 DK GRN/WHT 1547 Left Rear Low Level Audio Signal (-)
B10 ORN/BLK 1546 Right Front Low Level Audio Signal (-)
B11 LT GRN 512 Right Front Low Level Audio Signal (+)
B12 -- -- Not Used

2003 Hummer H2 factory radio C2 · 12-way · 12064799

Cavity Wire colour Circuit ID Function
A-K -- -- Not Used
L ORN/BLK 2061 Cellular Telephone Voice Low Reference
M PNK/BLK 2062 Cellular Telephone Voice Signal

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