johntheplinker
Master
Might want to see if she is cool with it first.How ghetto do you want to go?
There are plenty of buttons and wire down at the Autozone. Run a wire from the positive battery into the cabin (through a present, grommeted hole) to one side of the button. Run the wife from the other side of the button back through the same hole to the horn, connect to one side of the horn. If the horn is grounded by being bolted to the chassis, job done. If the horn is grounded through a wire....you are still done.
If you want to be bougie, throw a fuse in the hot side of the circuit. Or if you want to go super la-de-frickin da, use a relay.
Me, I would dig into the steering column, but I have a serious case of mechanical hubris.