Rear AUX input (RCA) Crafted from corrosion resistant materials Bluetooth streaming audio (A2DP/AVRCP) 12V DC (2-wire) Rear AUX audio output (RCA) Weatherband AM/FM tuner MP3/WMA player via USB input Conformal coated circuit boards with UV resistant materials/finishes Waterproof (IPX6). STEREO BT 3 SQUARE 160W