The IC-3.5PM allows you to connect your MP3 player, iPod or satellite radio to any audio device with RCA inputs. It features a waterproof panel/dash mount with rubber cover and a 4' extension cable. Also included is a 4' patch cord for connecting MP3 player to adapter plug. Dashboard / panel mount waterproof female 3.5mm stereo jack. 4' long extension cable with RCA plugs. Rubber Plug keeps water out when not in use. Can be installed on panels up to 1.25" thick. 4' long 3.5mm to 3.5mm stereo headphone jack extension cord included. Easily installed with commonly available 3/4" paddle drill bit. Can be used as remote headphone jack.