an apparatus for mounting an audio control in a wall is disclosed . the apparatus includes a wall - mountable housing having cleats on the front inner rim thereof and a first set of horizontal ribs spaced equally along the interior walls thereof . an audio control housing is provided for supporting the audio control and engagement of the audio control to the wall - mounted housing . the audio control housing includes flex fingers with ridges formed thereon . the flex finger ridges are operative to retractably engage the cleats to secure the audio control housing within the wall - mounted housing . the ridges are set at different spacings apart so that the audio control housing may be engagably received within the wall - mounted housing set at different depths .