Pinouts >  GM Chevrolet, Buick, Pontiac, Saturn, Cadillac OEM car audio
20 pin GM 13593932, 15491304 (15126710) Head Unit misc connector layout
20 pin GM 13593932, 15491304 (15126710) Head Unit misc connector
at the head unit wiring harness (connector end view)
p/n 84278530, 84361174, 84278524, 84361176, 84361178, 84361172
The pinout should fit 8 devices/models. Click to list>

20-way 15491304 (15126710) connector (all models)

Pin
Num		 Color Signal Opt
1 BK Ground  
2 GY/BN N/C  
3 BN N/C  
4 WH/BU Camera Signal 2 IO3
GY/GN Low Speed GMLAN Serial Data #2 IOB
5 GY/YE Camera Signal 2 +  
6 BK/GY Voice Recognition Audio Low Reference IOB+UE1
BK/BN Cellular Telephone Microphone Low Reference IOB-UE1
BARE Auxiliary Audio Screen 2 MCR/USR+IO3+D09
7 GY/YE Voice Recognition Audio Signal IOB+UE1
BU Cellular Telephone Microphone Signal IOB-UE1 
BU Auxiliary Detection Signal MCR/USR+IO3+D09
8 BN/GN Display Radio Bank Switch Signal 2 IOB
VT Auxiliary Audio Common Signal MCR/USR+IO3+D09
9 GY Left Auxiliary Audio Signal 2 MCR/USR+IO3+D09
BK/YE Cellular Telephone Voice Low Reference UE1+IOB
10 GN Right Auxiliary Audio Signal 2 MCR/USR+IO3+D09
YE Cellular Telephone Voice Signal UE1+IOB
11 RD/VT Battery Positive Voltage  
13 GN/BU Local Interconnect Network Serial Data Bus 10  
14 GY/GN Low Speed GMLAN Serial Data #2 IO3/IO4/IO5/IO6-IOB
WH/BU Camera Signal 2 IOB
15 GY/YE Camera Signal 2 +  
16 BARE Auxiliary Audio Screen 2  
17 BU Auxiliary Detection Signal  
18 VT Auxiliary Audio Common Signal  
19 GY Left Auxiliary Audio Signal 2 IOB
BK/YE Cellular Telephone Voice Low Reference -IOB
20 GN Right Auxiliary Audio Signal 2 IOB
YE Cellular Telephone Voice Signal -IOB

 

8-way 13551679 (19115653) connector

Pin
Num		 Color Signal Opt
1 WH/L-GN MOST Serial Data (-)  
2 GY/VT MOST Serial Data (+)  
3 WH/L-GN MOST Serial Data (-)  
4 GY/VT MOST Serial Data (+)  
7 WH/VT MOST Control  

 

16-way 10847013 (89047090) connector

Pin
Num		 Color Signal IOB
1 BU Left Front Speaker Control (+) 1  
2 YE Right Front Speaker Control (+) 1  
3 GN Left Rear Speaker Control (+)  
4 WH Right Rear Speaker Control (+)  
8 RD/VT Battery Positive Voltage  
9 BN/BU Left Front Speaker Signal (-) 1  
10 YE/BK Right Front Speaker Signal (-) 1  
11 GN/BK Left Rear Speaker Signal (-)  
12 BU/BK Right Rear Speaker Signal (-)  
16 BK Ground  

 

Omitted pins are Not Connected.

8 pin GM 13591516 (19353873) connector layout
8 pin GM 13591516 (19353873)  connector
at the wiring harness (connector end view)
Pinout status: +0 -0
According to 1 reports in our database (0 positive and 0 negative) the Chevrolet (2017-2019) Silverado, Tahoe, GMC Sierra, Yukon IO4, IO5, IO6 Radio Unit pinout may be incorrect.

Is this pinout
NO DIY devices

Additional connector №3

16 pin GM 7283-5534-60 (89047090) amplifier harness connector layout
16 pin GM 7283-5534-60 (89047090) amplifier harness connector
at the radio
Chevrolet (2017-2019) Silverado, Tahoe, GMC Sierra, Yukon IO4, IO5, IO6 Radio Unit visual pinout:click to enlarge
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