2010 Silverado aftermarket radio upgrade

[Barefutin]

The factory head unit was a double din, and wanting to replace it with an aftermarket head unit. So the new unit needs a constant power source and then and key on power source, and I assume the old one does as well. Constant to keep memory and “key on” just so the stereo turns on. Looking at the pin setup on the 2 plugs from the old unit, I can’t find the “key on” power. I did a volt check on the wires with the ignition on, and only found a 2volt reading on a yellow wire, which I think is the dimming function. Of course found the constant power pin/wire. 

 

Any help is appreciated.

 

The pin pin setup is:

14-Pin Connector C1: 

Pin Wire Color Circuit No. Function 

1 RD/WH 340 Battery Positive Voltage 

2 TN 201 Left Front Speaker Output (+) (UQ3) 

TN 511 Left Front Low Level Audio Signal (+) (UQA/UQS) 

3 L-GN 200 Right Front Speaker Output (+) (UQ3) 

L-GN/WH 512 Right Front Low Level Audio Signal (+) (UQA/UQS) 

4 PK 5149 Voice Recognition Audio Signal (UE1) 

5 PK/BK 5152 Low Reference (UE1) 

6 WH 7066 Entertainment Remote Enable Signal 

7 YE 6817 LED Backlight Dimming Control 

8 BK 2550 Ground 

9 GY 118 Left Front Speaker Output (-) (UQ3) 

D-GN 1947 Left Front Low Level Audio Signal (-) (UQA/UQS) 

10 D-GN 117 Right Front Speaker Output (-) (UQ3) 

OG/BK 1546 Front Low Level Audio Signal (-) (UQA/UQS) 

11 Bare 2011 Drain Wire (UQA/UQS) 

12 -- -- Not Used 

13 D-GN 5060 Low Speed GMLAN Serial Data 

14 -- -- Not Used 

 

16-Pin Connector C2: 

Pin Wire Color Circuit No. Function

1 BN/WH 367 Remote Radio Left Audio Signal (U2K)

2 D-GN/WH 368 Remote Radio Right Audio Signal (U2K)

3 Bare 2099 Drain Wire (UQA/UQS/UK6)

4 L-GN 7396 DVD Video Signal 2 (+) (DNU) 

5 BN 199 Left Rear Speaker Output (+) (UQ3) 

BN/WH 599 Left Rear Low Level Audio Signal (+) (UQA/UQS)

6 D-BU 46 Right Rear Speaker Output (+) (UQ3)

D-BU 546 Right Rear Low Level Audio Signal (+) (UQA/UQS) 

7 D-BU 658 Cellular Telephone Voice Signal (UE1) 

8 OG 6978 Amplifier Control (UQA Except Y91)

9 TN/WH 372 Remote Radio Audio Output (-) (U2K) 

10 GY 388 Remote Radio Right Audio Signal (U2K)

11 Bare 1573 Drain Wire (U2K)

12 WH 7394 DVD Video Signal 2 (-) (DNU)

13 YE 116 Left Rear Speaker Output (-) (UQ3)

BN 1999 Left Rear Low Level Audio Signal (-) (UQA/UQS)

14 L-BU 115 Right Rear Speaker Output (-) (UQ3) 

TN 1946 Right Rear Low Level Audio Signal (-) (UQA/UQS)

15 L-BU/BK 659 Low Reference (UE1) 

16 D-GN/WH 7395 Video Mode 2 Signal (DNU)

Edited July 10, 2018 by Barefutin

[Ak_grown]

your vehicle uses data communication to turn on your radio, there is no switched power. a integration module is needed to keep data communication in you vehicle. it is low voltage class 2 data. gm started that in 03 on the trucks. you locale best buy or amazon has all the parts you need. and remember best buy price matches amazon. 

[Barefutin]

There is a harness by Scosche, #GM17b, which I was told will work since this model of Silverado has no premium or Bose sound system, and no Onstar. 

[Ak_grown]

if thats the case then you would hard wire your switched to a acc./ign. for radio turn on. there should be a switched power in the junction box where you would wire a trailer brake harness, to left of the brake petal. make sure you fuse that wire also.  things you will lose with that plug would be the door chime and turn signal "click", don't know if you noticed that the sound for turn signal goes though speakers on these newer vehicles. so yes that plug would work.  

 

look at this

https://www.amazon.com/Axxess-AX-GMLAN29-Retention-2006-Up-Vehicles/dp/B01M3T2YQ7/ref=sr_1_1?ie=UTF8&qid=1531329470&sr=8-1&keywords=AX-GMLAN29

[Barefutin]

Thank you for the help. 

[qwank]

I Never use those Modules on '03 to '13 Trucks. I've seen plenty of them short out and cause the data line to go down preventing the truck from starting. I just wire up the radio to a constant power and ignition source.  You cn usually find a plug and play connector with out the module.  You just lose chimes, turn signal nose and Onstar.