Henry
Henry: I read your question the day you wrote it, but didn't get to respond, but I have been thinking about it for a while. I have had my 1980, C-22, since it was new, and one of the first things that I did was mount speakers in it. I cut into the fiberglass on the port side on the aft seat, and on the starboard side, in front of the porta-pottie. I used Jensen triaxials, which were popular speakers 20 years ago. They do still sound great, but I don't know that I would do it the same way now. Speakers have really improved in 20 years, and there are little computer speakers that sound fine. Here's what I am going to try this coming summer. (I'm not recommending this, yet, but this is what I am going to try). I am going to take a little personal CD player and plug it into a set of computer speakers, and take the headphone output from the computer speakers and plug them into my big speakers mounted on the boat. I might also move the computer speakers into the cockpit, just placing them into the coaming compartments. If this works well, I plan on building a little wooden bracket to mount just the amp form the computer speakers inside the boat, on one of the shelves that run along under the windows, with the portable CD player mounted on top of it, possibly with velco. I plan on using batteries in the CD player and computer speaker amp, or a 6 volt adapter that I previously made for a tiny portable TV. As some of the other guys who responded to your question, I have used a car cassette player in my boat, but I don't plan on using it any more. I hope that this gives you a few ideas. The computer speakers that I mentioned above are from $4 to $13 when purchased either on the Internet, or from a local discount type of store. Whatever you do, it will sound great, and will be worth the effort, I would just proceed slowly cutting a lot of big holes into your boat. I hope you get this response. Aldo