Includes 4 speakers, 2 amps, adapters and lid cut in kitBoth amps bolt in fairing with supplied mounting platesAdds fairing speakers and 6'' x 9'' speakers to saddlebag lids with 450 W of powerAll required plug and play wiring and hardware includedNo radio reflash is required, but fader will work if the radio is re-flashed.Kit fits factory saddlebag lids.