The present invention, in certain embodiments, is an exterior-wall-mounted accessory outlet unit for a recreational vehicle, motor home, travel trailer or mobile home. The apparatus includes a housing and a mounting plate. The housing is adapted to be positioned through the exterior wall of a recreational vehicle, motor home, travel trailer or mobile home. The housing includes a mounting lip and side walls, which form an interior space, and a receiving ridge. The mounting plate is shaped to fit into the receiving ridge of the housing, such that the outwardly-facing planar surface is generally parallel to a plane defined by the exterior wall of a recreational vehicle, motor home, travel trailer or mobile home. Within the mounting plate is at least one aperture for accommodating at least one electrical power accessory outlet, at least one coaxial cable mount, at least one modular telephone connector and at least one exterior speaker outlet.