After a few close calls calls, and just coming across idiots blocking intersections and not paying attention while yapping on their cell phones, I ordered a Stebel Nautilus compact air horn from bikerhiway.com. It says it comes with all the wiring, connectors and inline fuse to do the job. Haven't decided where to mount it. If it's too big to go where my Fiamm is, I might put it down on the forward control cross bar. With the Freak on my bike, I might even put it under the seat.