Pinouts >  Genuine GM Opel, Chevrolet, Buick, Pontiac, Saturn, Cadillac car audio
24 pin GMC Radio Head Unit 12110088 connector layout
24 pin GMC Radio Head Unit 12110088 connector
at the car stereo
for wide range of models produced in 2003-2009 years

24 pin Gray 12110088 connector

Pin
Number
wire color UQ3/UQ5  UQ7
1 ORN Radio Class 2 Serial Data
3 PPL N/A Rear Seat Audio Enable Signal (UQ7 w/o Y91)
4 RED N/A FM Composite Signal (UQ7 w/ Y91)
8 TAN Left Front Speaker Output (+) (UQ3/UQ5)  Left Front Low Level Audio Signal (+) (UQ7)
9 GRY or DK GRN Left Front Speaker Output (-) (UQ3/UQ5) Left Front Low Level Audio Signal (-) (UQ7)
10 LT BLU or BLK Right Rear Speaker Output (-) (UQ3/UQ5) Right Rear Low Level Audio Signal (-) (UQ7)
11 DK BLU Right Rear Speaker Output (+) (UQ3/UQ5) Right Rear Low Level Audio Signal (+) (UQ7)
12 BLK/WHT Ground
B1 ORN Battery Positive Voltage
B3 PNK or DK GRN   Radio On Signal (UQ7 w/o Y91) or 
Antenna Enable Signal (UQ7 w/ Y91)
B4 BRN/WHT Instrument Panel Lamps Dimming Control (w Y91)
B5 BLK Ground (w/ Y91)
B6 GRY/BLK   Radio Mute (UQ7 w/o Y91)
B8 BRN Left Rear Speaker Output (+) (UQ3/UQ5) Left Rear Low Level Audio Signal (+) (UQ7)
B9 YEL or DK GRN/ WHT Left Rear Speaker Output (-) (UQ3/UQ5) Left Rear Low Level Audio Signal (-) (UQ7)
B10 DK GRN or ORN/BLK Right Front Speaker Output (+) (UQ3/UQ5) Right Front Low Level Audio Signal (-) (UQ7)
B11 LT GRN Right Front Speaker Output (-) (UQ3/UQ5) Right Front Low Level Audio Signal (+) (UQ7)

20 pin 12064799 connector

Pin
Number
wire color Function
C BARE Drain Wire (w/ U2K/U2L)
E DK GRN/WHT Vehicle Speed Signal (w/ Y91)
H DK GRN/ WHT Remote Playback Device Right Audio Signal(w/ U2K/U2L)
J BRN/WHT Remote Playback Device Left Audio Signal (w/ U2K/U2L)
K BLK/WHT Remote Playback Device Common Audio Signal (w/ U2K/U2L)
L ORN/BLK Cellular Telephone Voice Low Reference
M PNK/BLK Cellular Telephone Voice Signal
 

UB0 Head Unit

p/n 10357894 , 15104155 , 15138488 , 15184932 , 15198700 , 15756188, 
15295371, 15234915, 10359576, 15850275

UM8 Head Unit p/n 15800001 

also p/n 15230099, 10377531, 15800001, 15204334, 15204335

 

20 pins unspecified connector layout
20 pins unspecified connector
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GM (2003-2006) Chevrolet, Cadillac, GMC UB0, UB1, UC6, UM8 Head Units visual pinout:click to enlarge
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