I bought a dual air horn and want to hook it up separate from my factory horn how would I go about doing this? Should I just need wiring and a place for ground (chasis) and connect a wire to the fuse or relay under the hood for my factory horn and run a button for it?
Thanks in advance.
I still haven't quite figured out how horns work, every time I apply +12V to them with the body grounded, they just pop like if you do the same to a speaker. I remember one specific event when I had this weird looking horn that when hooked to the battery of my Pontiac 6000 wagon, it would POP and that was it. When I plugged the wire that goes to the OEM horn, it would honk (but sounded like crap, so I threw it away).
I'm thinking you will also need a horn relay, and that might be what makes the horn actually honk?
The Mercedes I had for a couple hours had an interesting factory setup. 4 horns, 2 "beep beep" style (like what a Honda has) and 2 normal (but really really deep) horns. There was a switch on the dash that would swap between the 2 sets.
Oh wait, you said air horns... AFAIK, you will just need +12V to the motor or valve for these to work. Just get some hot to a momentary contact switch, then from the switch to the horn. Good to go!
Ya my horn setup has the relay with it so thats covered, and the directions say hook a switch up to it to toggle the 2. Looks gibberish to me.
Could you use the existing horn wiring on the OEM horm and route it to your other horn(s)?
Unless they want some other wire you don't have.
Are you saying I splice into the factory horn wires? I don't want to splice into wires, I want to hook it up separate from that horn.
Well I already do have a +12V wire stripped covered in electical tape that prevously had a keyless entry installed on it. So your sayin all I need to do is wire it to the +12V wire under the dash and ground it? Sounds easy enough.
Just remembered. Think I'll need the relay still?