A mounting system includes a cradle disposed in a headrest in a vehicle, and a primary adapter. The cradle is shaped and dimensioned to receive the primary adapter. The primary adapter includes first to fourth lips forming a recess in the primary adapter. The recess is shaped and dimensioned to receive a first computing device or a secondary adapter. The first computing device, or a bezel of the secondary adapter, is substantially flush with an outer surface of the headrest upon mounting the first computing device or the secondary adapter to the primary adapter.