A monitor assembly for a vehicle headrest, the monitor assembly including: a monitor holding part, the monitor holding part including a first side and a second side opposite the first side, the first side configured to connect a monitor thereto, the second side configured to face a vehicle headrest, the monitor holding part further including: a digital media player disposed on the second side of the monitor holding part, the digital media player disposed on a heat sink; an input/output board disposed on the second side of the monitor holding part and connected to the digital media player; a vent extended lengthwise adjacent to an edge of the second side of the monitor holding part; and an opening adjacent to the heat sink, wherein the opening exposes the heat sink at the first side of the monitor holding part.