Kenessex thank you for picking up on my clues and symptoms. I have taken apart the left switch assembly a couple times and everything looks really clean inside, but the colors of the wires dont match up with the wiring diagram, (no spiderwebs or anything and wires look healthy) But when it gets to the headlight cavity everything is a mess with the wiring in there. I have adjusted the screw on the back of the horn as well and like i said it only does a slight vibration...UPDATE... when I turn the key off right before it is in the OFF position a little tiny beep comes out of the horn, but if the bike was running you wouldnt be able to hear it.You guys seem to have missed the little tidbit of there is a constant 6V to the horn even when the horn button is not pressed. The other little clue he presented is that the horn and wires are hot when he is running the bike. The horn and wires are not designed to have constant voltage with no work being done, i.e. the horn not vibrating. So there is yet another problem, as in either the horn button is stuffed or there is a short in the system. Either way, take the left switch assembly apart and look for the wiring problem. Besides the adjuster screw on the back of the horn, quite often there is a build up of rust and insects in the horn. Try giving it a few whacks with a screwdriver handle while it is activated and see if it starts squawking. I generally use a #3 phillips from Snap-on with the black triangular handle. It has just a little more heft than the #2.
Do you think the short is in the horn and by whacking the horn itll work?