[Zero10]

Yeah, your fuse box is in the driver's footwell. In late cars it is under the hood.

On the late models, we still have the little copper slider for the horn. And it still wears out. Too bad =(
Should be able to use some kind of conductive grease to help it last longer though.

Check for power at the horns when you push the button. Or try shorting the wire in the center of the wheel to ground. Those are the easiest ways to start.

I have seen the horns corrode to the point where they become inoperable as well. Fairly common I think.