Also, you will be blasting everyone on the lake with your music and you become "that guy". I have decided that on my next boat, I am skipping the tower speakers.
Thought about that before. Just have a clean/simple in-boat stereo. No tower speakers. Let the rider have a waterproof ipod of some sort. How much easier would that be>>>

Doesn't do much for party cove and projecting up onto the beach when you're anchored. All depends on what's important to you...