USB Interface and/or 1/8" Auxiliary Input Jack. Waterproof design. USB port allows for connection of external storage device. 1/8" audio jack allows input of any MP3 player or external audio device. Audio connector (RCA). For use with any stereo with USB capability and/or auxiliary audio inputs. ASTM B117 Salt Spray Exposure Standard Compliant. ASTM D4329 UV Exposure Standard Compliant. Through hole mount with threaded housing and knurled securing nut.
