I have a 00 accord...all of a sudden the horn goes off all the time now...if i open the doors the horn goes off...I have a viper alarm but i unplugged it so i believe its something factory...what is wrong?...help asap is appreciated.

maybe one of the wires that goes to your horn relay is getting occasionaly contact with a ground or something...sounds fishy. Check the alarm wiring tap points as well as near the horn wires.

-Rage