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Need a factory stereo wiring diagram non-Bose system?

Tiny
DOUG WINOWIECKI
  • MEMBER
  • 2011 GMC SIERRA
  • 4.8L
  • V8
  • 4WD
  • AUTOMATIC
  • 142,000 MILES
Need a factory stereo wiring diagram non-Bose system 2011 GMC SL 1500 Sierra color coded please.
Monday, July 31st, 2023 AT 10:25 AM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Sure, here are the stereo wiring diagrams and a guide to help you test the connections.

https://www.2carpros.com/articles/how-to-check-wiring

Check out the images (below). Please let us know if you need anything else to get the problem fixed.
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Monday, July 31st, 2023 AT 5:27 PM
Tiny
DOUG WINOWIECKI
  • MEMBER
  • 2 POSTS
Could you tell me what these wires represent? Thank you again. 2011 GMC Sierra 1500 sl 4.8 lt flex fuel they are from back of radio.
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Tuesday, August 1st, 2023 AT 9:52 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
These are out of the back of the radio, correct? You can use the wiring diagrams to see where each wire goes and what it does.
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Wednesday, August 2nd, 2023 AT 6:21 PM

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