Jensen USB Interface 1/8 Auxiliary Input Jack. Features. US interface port for connection to USB capable stereos such as MSR2107, JMS2212, and JMS7010. 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 . 10' Cable Length. For use with any stereo with USB capability and/or auxiliary audio capabilities. UV-resistant finishes/materials meets ASTMD4329 . Corrosion resistant materials meets ASTMB117 . Through hole mount with threaded housing and knurled securing nut. Mounting Hole 1.5 . Dimensions 1.89 Diameter x 1.18 Depth Features. US interface port for connection to USB capable stereos such as MSR2107, JMS2212, and JMS7 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 10' Cable Length. For use with any stereo with USB capability and/or auxiliary audio capabilities UV-resistant finishes/materials meets ASTMD4329 Corrosion resistant materials meets ASTMB117 Thr