A cage tower speaker system for outdoor vehicles and watercraft is disclosed. The cage tower speaker system includes a driver cage tower speaker and a dummy cage tower speaker. The driver cage tower speaker includes an outer housing, an amplifier, a speaker assembly, a removable rechargeable battery, and a mounting bracket. The outer housing includes a frontal opening, a rear opening, a rear wall, an exterior surface, and a plurality of membranes. The outer housing, the frontal opening, and the rear wall form an interior sound space surrounding the speaker assembly. The exterior surface extends from the frontal opening to the rear opening and surrounds the interior sound space. Each of the plurality of membranes are coupled to the exterior surface and the interior sound space.