I have a 2003 Hunter 306. I'd like to install some speakers for the stereo in the cockpit. Any suggestions? I saw neighbors 36' that had a nice box on the underside of the arch, but a call to my dealer gives me a price of $514 for the box. Too much! I do like th idea of getting them out of the way though (we frequently sit in the cokpit with our backs to the cabin wall, so that's not a good place).