Include 600-watt amp with front and rear speakers Amplifier installs easily inside front fairing No upgrades required to factory charging system Features R.E.M.I.T. circuitry for excellent FM reception from a Class D amp No adjustments on amp makes installation very simple Includes Ultra Rear Harness 2120-0900, which allows radio fader to control front/rear levels System is expandable to easily add additional amplifier for fairing lowers or saddlebag lids Radio reflash is not required for stock (Non CVO) Ultra Classic Models. SPEAKERS AMP ULTRA KIT