Can anyone tell me where I can easily locate the wires that trigger the horn when you press the steering wheel button and the wire for the high beams when you press the bat/lever next to the steering wheel? Before I take the steering wheel and steering column apart to find it (assuming I don't need to)

also, if I grab the wire at the steering wheel, will the horn for alarm still work? I have changed the stock horn for an aftermarket alarm siren which sounds great when I lock the car (and does great when I accidentally set the alarm off too) but I would like the steering wheel trigger to activate my air horn.

also would like the high beam switch to turn on my light bar as the head lights are led and high beam does about nothing extra.

I don't need a lecture on legality btw...

 

For the horn, you could use the wire for the original horn, it's in the cavity behind the driver side headlight.

 

That's the one I swapped with an alarm siren. I don't want that to go off when I press the steering wheel. I want my air horn to activate. I assume there is some sort of relay or diode that splits the horn button and alarm triggers

 

That would be in the BCM but might be internal and not accessible

 

The horn button sends a signal to the BCM, the BCM sends a signal to the relay. When in alarm mode the BCM sends the same signal to the relay from input from whichever module alerts it. It is possible that the button wire just connects at the BCM.

 

A great prank is to stick a one loose end of a wire and stick it in the horn wire connector and put the connector back on. Then do the same thing to the low beam connector. They turn on the lights and get the horn along with it!!!