Marine CD
I went through the same selection process for my 30 last year. I ended up with a marine unit because I wanted to install it from a bracket next to my marine radio above the chart table. I don't remember the brand, but I got it at Boat US for about $275. If you start looking at the better auto players, you will find that decent ones are getting very near that price point. If you buy a housing unit, you're there. If your option is to cut holes and install it, though, you can do it for less. My unit has worked great. It has two speaker zones so I can douse the music in the cockpit when we're inside. It really added a lot to our enjoyment of the boat... especially for the kids.Good luck.PS: Be very careful of where you put the speakers if you have autohelm. They will screw up the compass.