Wild Boar By Hogtunes Front & Rear Speakers & 600 Watt Amp Kit For Harley Touring Features 600 Watt amp with R.e.m.i.t. mounts on top of radio inside fairing Will not harm bikes charging system 200 Watt front speakers blend seamlessly into front fairing 150 Watt rear speakers fit perfect into factory rear speaker pods Amplifier designed around small factory charging system Made specifically to work best with factory HD radio. No crossover, gain, or EQ adjustments make installation very easy System retains all bikes fader control, CB and communication features All required mounting plates, hardware and wire are included System is expandable as future products become available 5 Year Warranty on speakers / 3 Year Warranty on amplifier Note: The factory radio flash on Ultra models is called 4 speaker no amp and is the one Wild Boar Audio amps like so your Ultra Classic model will NOT need a radio reflash. This assumes your radio has not been flashed since new and the factory flash in it. This also assumes your bike is not a CVO model