On a 3 hour drive today, I smelled a funky burning smell. Later on the trip I noticed the horn and A/C weren't working. Aux fan works but compresser does not engage. 15 amp Fuse 9, for horn was blown so I replaced it. Car was fine for another hour, then the funky burning smell returned, a/c and horn not working, and fuse 9 out. How can I find whatever is shorting out??? Or do I just put a 30amp fuse in place, watch the car burn, and claim insurance for an electrical fire