tammy@4445
Junior Member
- Joined
- Sep 13, 2013
- Posts
- 1
- Reaction score
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- Ram Year
- 2011
- Engine
- cummings 6.7
Has anyone installed one of these on their vehicle? I am unsure about the wiring of the relay and don't want to screw up any onboard systems. I have looked under 6126 air horns and some are saying the wiring is wrong in the instructions. My instructions say pin 1 to constant 12V - pin 2 connect to horn wire in vehicle, pin 3 to connect to pin 1 and pin 4 to + side of compressor. That leaves the negative side of the compressor to be grounded to frame somewhere. Any help out there?
