I have an XMD3 in my boat, and i've got my iPod hooked up through this connector:
http://sik.com/imp.php
works great, only trouble is that i bought that connector like 5 years ago and it only supports older iPods. What can I replace it with that uses the same female connector to let me just plug & play? I'm a total newb on this stuff, but hoping there's something i can easily swap out. I believe that Sik is now out of business.