I also have thought about how great it would be to take an MP3 player on the boat and have more songs than my batteries would ever allow me to play. The problem I see is how to connect a portable to a system other than using a mini plug- Y cable to RCA jack kinda thing. I can come up with some [email protected] descriptions can't I. Seems to me the better solution would be to get a newer model CD changer that will play CD-RW's. If anyone has a better idea please chime in.