Installing A Cd Player On A Boat My New CD Player In My Boat Keeps Cutting Off.?

My new CD player in my boat keeps cutting off.? - installing a cd player on a boat

Only recently a new CD and 4 new speakers in my boat. My boat originally had only two speakers, but I cut a few holes and made new cables. Now its logged off and then, almost like a car from his. All the speakers to work, so that the wiring is correct, which is intended only for himself without giving reasons. Suggestions?