Designed to work with factory charging system–no upgrade required. Includes fairing speakers, rear speakers and 6.5" speakers with adapters for the fairing lower glove boxes. Speaker adapters for fairing lower glove boxes give simple access to factory coolant tank. Main portion of lower speaker adapter is gloss black to match factory inner fairing. Includes Wild Boar Audio amps with special mounting plate. All amps fit inside fairing, are bolt-in and 100% plug-and-play. Amplifiers feature R.E.M.I.T. Technology for excellent FM reception from a Class D amp. Kit comes complete with all wiring and hardware to complete the installation.