I bough this horn from Biker Highway with the plug-n-play wiring kit. This horn is LOUD. My 14 yo son says it doesn't sound very manly (I told him it sounds Eurpean), but when you live in God's waiting room (South Florida) you want to be heard even by the hard of hearing. This is truely the loudest motorcycly horn I've ever heard. The plug & play wiring kit is a must. It turned the installation from a weekend of aggrivating trips to the auto parts store into a 1/2 hr install after work. I mounted the horn to the bracket on my freeway bars where they bracket the forks. I drilled one of the holes in my existing horn bracket a little larger, bolted the horn bracket to the freeway bar bracket, tie strapped the wires to the existing harness that goes back to the battery, connected the plug & play harness per the directions and HONNNNNNNNNNNNNNNNNNNNNNNKKKKKKKKKKKKKKK.