I love systems, belive me in my jeep I have a Panasonic single CD head unit with 8 cd changer, 1 x panasonic DVD and screen, 1x 240v inverter (yes it does drain the battery if the engines not running), 3x pheonix gold 360w amps driving 6x9 in the roof with 7" mids in the front doors and 12" sub woofer in the boot.
So i have been long thinking of what i do in the RIB??? So the £1000 dvd is a bit of risk with salt water etc.
My best plan as yet is JVC waterproof speekers with a jack on the end that plugs in to a personal minidisk. I have a Aiwa minidisk that I used on my motor bike & joging and it doesnt skip. My plan was to put this in a waterproof bag like we put our VHF's in.
But thats just my point of view.......