A housing for an on-vehicle electronic apparatus includes a housing body, and a front panel assembly detachably attached to the front surface of the housing body. A recording medium insertion slit is provided in an upper portion of the front surface of the housing body. When a finger is put on the portion of an upper panel portion and the upper panel portion is pushed downwards, an upper member is moved downwards, and a lower member is swung to the front side about an axis according to the vertical movement of the upper member. When the upper panel portion reaches a lower position and a lower panel portion reaches a slant position, the spacing between an opening and an upper wall of the upper panel portion is enlarged, and the recording medium insertion slit is opened, resulting in the condition where a recording medium can be inserted or removed.