Just looking for some help from the expertise on this forum again. Son has a Yamaha TTR 125LE. Trying to make it street legal. Bought a Baja Design head and tailight kit - no blinkers or horn wiring. Does have a kill button on the light switch that could be used for a horn, if I knew what all it would take to wire it in.

Anybody have any advice, or know if it can be done? Have looked at a "megahorn" (bicycle horn) that operates off a 9v battery, supposedly 105db.