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Hi!I'm installing an air horn (2 trumpets, air tank and compressor) in my new Screw (Lots of room behind the bumper) and I don't want the compressor or horn to run unless the ignition is on.(The system works like this; the horns get air from the tank; the tank has a pressure switch that automatically turns on the compressor to fill it)The Aux switches won't do the job as I never want the system manually deactivated.I've got unswitched power and grounds and a relay tapping the factory horns to activate the air release switch on the tank; all that's left is a wire somewhere under the hood that's live when the ignition is on to tap into to run to the relay I'm using to power the compressor.Anyone know of a wire I can use?Thanks!
Hi!
I'm installing an air horn (2 trumpets, air tank and compressor) in my new Screw (Lots of room behind the bumper) and I don't want the compressor or horn to run unless the ignition is on.
(The system works like this; the horns get air from the tank; the tank has a pressure switch that automatically turns on the compressor to fill it)
The Aux switches won't do the job as I never want the system manually deactivated.
I've got unswitched power and grounds and a relay tapping the factory horns to activate the air release switch on the tank; all that's left is a wire somewhere under the hood that's live when the ignition is on to tap into to run to the relay I'm using to power the compressor.
Anyone know of a wire I can use?
Thanks!
