You listen to your iPod and satellite radio in your car, so why not while cruising on your boat? Poly-Planar's IC-3.5PM adapter cable lets you connect your MP3 player, iPod, or satellite radio to any Poly-Planar audio device with RCA inputs. The 50-inch cable sports RCA male plugs on one end, with a waterproof panel/dashboard mount on the other end.
Poly-Planar also includes a 4' stereo headphone jack extension cable that plugs into the dashboard mount, so you can move freely around your boat with portable player in hand. Warranty: 2 years.