Horn Problems

[landy]

Still having some horn problems. Now I know why the P.O. must've disconnected the horn.

With 12 volts applied directly to the horn it works. Replaced all the column horn components, grounded the steering wheel button and no horn. So then replaced the horn relay, grounded the horn button and got some buzzing and some smoke. Checked the horn relay and it had a hole burned in the side of it, so I know there's a short in the circuit somewhere, but I'm not sure where to start. I have one horn with a non-original wire running to the terminal The factory wiring diagram seems to indicate that a wire should go from the horn to the fuse panel. Is that correct?

Thanks!