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44 pin GM RADPB-44-1AK (88988902) Head Unit connector layout
44 pin GM RADPB-44-1AK (88988902) Head Unit connector

44 pin Main Audio RADPB-44-1AK connector

Pin
Number
wire color Function
2 YE Navigation Display Serial Data Low
3 BARE Drain Wire
4 OG Center Channel Low Level Audio Signal (-) (UQS)
5 PK Subwoofer Low Level Audio (-) (UQS)
6 L-BU Remote Playback Device Audio Common Signal (UE1)
7 GY Remote Radio Right Audio Signal (U2X/U2Y)
8 TN/WH Remote Radio Audio Output (U2X/U2Y)
9 BARE Drain Wire (U2X/U2Y)
10 DGN/WH Right Auxiliary Audio Signal (2)
11 PK Auxiliary Detection Signal
13 PU/GN High Position Display Control Wake-Up Signal
14 D-GN Low Speed GMLAN Serial Data
15 OG Radio Audio Mute Signal (WXS)
16 TN Navigation Display Serial Data High
17 BARE Discrete Audio Drain Wire (UQS)
18 D-BU Center Channel Low Level Audio Signal (UQS)
19 WH Subwoofer Low Level Audio Signal (UQS)
20 OG/BK Remote Playback Device Left Audio Signal (UE1/WXS)
21 DGN/WH Remote Radio Right Audio Signal (U2X/U2Y)
22 BN/WH Remote Radio Left Audio Signal (U2X/U2Y)
23 D-BU Auxiliary Audio Common Signal
24 L-GN Left Auxiliary Audio Signal (2)
27 L-GN Remote Radio Control Signal
28 D-GN Low Speed GMLAN Serial Data
29 BARE Drain Wire (UQS)
30 BARE Drain Wire
31 L-GN Right Front Low Level Audio Signal (-)
32 D-GN Left Front Low Level Audio Signal (-)
33 TN Right Rear Low Level Audio Signal (-)
34 BN Left Rear Low Level Audio Signal (-)
37 OG Radio Audio Mute Signal (UQA)
38 BK/WH Ground
39 LGN/WH Right Front Low Level Audio Signal (+)
40 TN Left Front Low Level Audio Signal (+)
41 D-BU Right Rear Low Level Audio Signal (+)
42 BN/WH Left Rear Low Level Audio Signal (+)
43 WH Entertainment Remote Enable Signal (U2R/U2S/U2T/UAV/U2X/U2Y)
44 RD/WH Battery Positive Voltage

 

20 pin UQS/UAV/U2X/U2Y/WXS connector p/n 15126710

20 pin GM 15491305, 13593933 (15126709) Head Unit misc with numbering

Pin
Number
wire color Function
1 GY COAX (U2X)
2 YE COAX (U2X)
3 BARE Drain Wire (U2X)
4 YE Video Display Position Control (UAV/U2X/U2Y)
5 GY COAX (U2X/U2Y)
6 GY or PK Cellular Microphone Signal (WXS) or Voice Recognition Audio Signal (UAV with UE1)
7 YE Navigation Audio Signal (+) (UQS with UAV/U2X/U2Y)
8 BARE COAX (UAV/U2X/U2Y)
9 TN COAX (UAV/U2X/U2Y)
10 OG COAX (UAV/U2X/U2Y)
11 BN COAX (U2X)
13 YE Video Display Position Signal (UAV/U2X/U2Y)
14 YE COAX (U2X)
15 BK COAX (U2X/U2Y)
16 PK/BK or BARE Voice Recognition Audio Low Reference (UAV with UE1) or Ground (WXS)
17 WH Navigation Audio Signal (-) (UQS with UAV/U2X/U2Y)
18 BARE Drain Wire (UQS with UAV/U2X/U2Y)
19 YE COAX (UAV/U2X/U2Y)
20 D-GN/WH Vehicle Speed Signal (UAV/U2X/U2Y)

8 pin Radio/HVAC Display X1 (UAV/U2X/U2Y) connector p/n 7283-9029-40

Pin
Number
wire color Function
1 RD/WH Battery Positive Voltage
2 BK/WH Ground
3 OG COAX
4 WH Entertainment Remote Enable Signal
6 BARE COAX
7 TN COAX
8 YE COAX

 

 3 pin Radio/HVAC Display X3 (UAV/U2X/U2Y) connector p/n MX38-FF-A-A-L915

Pin
Number
wire color Function
1 GY/BK COAX
2 D-GN/WH COAX
3 BARE COAX

 

CD AM FM MP3 Navigation Radio Receiver UAV unit RearView

p/n 15219365, 20833567, 20880268, 20904448, 20940118, 20968704, 22758369, 22790325, 22951249, 25810806, 25871792, 25881473, 25890031, 25901983, 25913880, 25979736

20 pin GM 15491305, 13593933 (15126709) Head Unit misc connector layout
20 pin GM 15491305, 13593933 (15126709) Head Unit misc connector
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Cadillac (2008-2011) CTS opt UQS, UAV, U2X, U2Y, WXS Head Units visual pinout:click to enlarge
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