In Vegas I met Greggs (Squirrel) friend and employee Steve (VTX1800). Steve introduced me to his stereo tank bag that he puts together. I decided to purchase just the I-Pod hook up, but he does offer a 2 or 4 speaker radio/I-Pod/thumb drive model. The kit I received comes complete with amp, I-Pod hook up, power hook up, and 2 Polk speakers. I tried it out today and could hear the sounds fine at 70 MPH with a half helmet. The craftsmanship is topnotch just like Greggs items. Steve can be reached at 916-308-9600.