Good point I added the regulator to prevent the head light from blowing if the battery went bad or it lost connection while riding. Thanks, any suggestions to stabilize the current to the chip? Sorry Not that good with electrical. The bike does use a rectifier, But I wouldn't have a clue if that would make a difference with it wired to the horn? If the chip takes a crap it's only $7 but would like this to be reliable. Thanks