Anyone using their iPODs on their boats? IF so, are you playing through
an existing stereo system, or through one of the newer car/boat dash
stereos with an MP3 player input, or...just hooking up to external iPOD
speakers?

Depending on what radio you have in your boat there may be an adapter for
it. Several companies make iPod adapters that integrate with the radio.
Some act as a replacement for the CD changer, and since the ipod holds
considerably more songs most folks don't miss losing use of the player.
Other adapters tie into an auxilliary input on the head unit.

If you don't already have some sort of remote for the radio then consider
just getting a new radio entirely. One that has support for an iPod. Or,
if you've already got a remote than consider getting a new ipod-compatible
head unit that will work with it.

The FM modulator options do work but the fidelity is usually not very good.
Same thing goes with cassette tape adapters. The tape adapters are
problematic in that they usually cause the door on the tape player to remain
open, allowing crud to get in there. But I'm not sure how many boats would
even have a tape player, precisely because of issues with heads getting
dirty.

-Bill Kearney