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Factory alarm triggered by radio?

Tiny
MARCO A. MARTINEZ
  • MEMBER
  • 1989 MERCEDES BENZ 190E
  • 2.6L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 222,000 MILES
I’ve been trying to install an aftermarket stereo and I’m having trouble with the alarm, there’s two brown wires and one blue wire, I’m not sure where they go into the new harness, all the factory harnesses are cut.
Wednesday, March 22nd, 2023 AT 3:20 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,702 POSTS
Here are the radio wiring diagrams so you can hook up the aftermarket radio and a guide to help test the connections:

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

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Thursday, March 23rd, 2023 AT 9:09 AM

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