53 3100, Cleaned and painted horn. All new wiring harness and new horn button. Horn worked fine. Driving around a little and it would blow on it's own sometimes. I would hit the horn button and it would quite. After a couple trips aroung the neighbor hood it started to blow and would not quite. I disconnected the wire coming out of the mast and it still blew. I had to disconnect at the horn to make it stop. Could it be the horn itself.