JVC Car KDPDR40 50 Watts x 4 CD/MP3/WMA Receiver CD receiver with built-in MOSFET amplifier (20 watts RMS CEA-2006/50 peak x 4 channels) Plays CDs, CD-Rs, and CD-RWs (including discs loaded with MP3 and WMA files) Built-in iPod control (no adapter necessary, cable included) Front-panel auxiliary input 2-channel preamp outputs (selectable rear/sub)