Wiring discovery

[Idaho]

I was so smart. Found a lead in the headlight bucket that is only hot after the engine starts and tapped into that lead to power a 12volt automotive relay that heats up a fuse block. Then I tied my Stebel air horn and audio system into the fuse block. A couple of times now my horn stopped working. First time I pulled the fuse and it looked okay but I replaced it anyway and after starting the bike the horn worked. This morning my horn worked early then did not work later after church. I looked a the switches on the left handlebar and noted that the headlight switch was in the hi-beam position. Flipped it down to low-beam position and sure enough the horn started to work. Verified it by hitting the horn button and flipping between hi and low beam at the same time. You guessed it, the horn stopped when I went to hi-beam. At least I know that the horn works on low beam. Did not have a problem with the audio system because it has a back up battery in the radio that powers the system when the bike is off.

Some of you guys probably are way ahead of me on this but I thought that I would post it for those of us who are not as up to speed on wiring. Don't remember the color of the wire that I tapped into.