Door lock, accessory, amplifier relay location

1999 CHEVROLET EXPRESS
120,000 MILES • 5.7L • V8 • 4WD • AUTOMATIC
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JONATHAN JUPITER
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  • 2 POSTS
Stock amplifier loses power when door lock button is pressed. I bought the replay that is needed, but do not know where it is located.
Sep 20, 2018 at 7:50 PM
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STRAILER
  • CAR REPAIR CONTRIBUTOR
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Hello,

I do not see a relay in the system, but I do see the convenience center and VSS inputs. Here is a wiring diagram for the radio so you can see how the system works. This guide can help as well.

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

Check out the diagrams (below). Please let us know what happens.

Cheers, Ken
Sep 22, 2018 at 12:28 PM
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JONATHAN JUPITER
  • MEMBER
  • 2 POSTS
Thank you, turns out door tweeter cable was loose and touching metal on the door causing stereo to go on protect mode. Diagram was very helpful.
Sep 22, 2018 at 12:42 PM
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STRAILER
  • CAR REPAIR CONTRIBUTOR
  • 54,350 POSTS
Glad you could get it fixed, that kind of problem can be tough. Please use 2CarPros anytime we are here to help.
.
Cheers, Ken
Sep 24, 2018 at 10:23 AM
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