Hey g35drivers,

The title says it all. I'm looking to install some aftermarket horns for those "special" occasions when people just aren't paying attention.

I am going to have them activated by the factory horn button (steering wheel), but the ability to turn the aftermarket horns on or off with a second switch.

What I need to know is if the horn button (steering wheel) is hot (powered) or if it is the ground.
From what I read on the shop manual wiring diagram (section WW, page 43) it looks like the horn button is the ground.
Electronics are not my strong suit, so I'd like some reassurance here!

Thanks for any help you can give me!

 

It's a circuit. One side has always power, one side has ground. When you push the button, the circuit is completed, allowing the relay to trip.

If electronics isn't your strong suit, I wouldn't recommend doing it yourself.

If you're running a switch inside the cabin to swap horns, you'll need to set up a second relay with the appropriate fuse, otherwise you'll be running more current through the horn button than is supposed to be, which is a fire hazard among other things.

 

green/black wire, its a negative (-) trip. As in, you push the horn button, it sends a neg. (-) out this wire.

You won't need a relay if you're just using the horn act wire to trip your a/m horns, BUT if you're powering ANYTHING with it, use a relay. If you don't know how to wire a relay, find someone who does to help you with all of this