Just got my new boat home and need to add a stereo because the original owner ordered it without one. I don't think I want to use a complete headed unit so I will be using something similar to this blue tooth receiver and a small amplifier that can be hidden. I would like to avoid cutting holes in the boat to add speakers so I was hoping maybe somebody has some info on quality speakers that are already in a housing and can be cleanly mounted with minimal drilling.

JL Audio, Fusion and probably others make self contained bullet shaped speakers that sound great.

Rockford Fosgate makes a nice Wake Tower Speaker.