Pioneer DEH-P6100BT In-Dash CD/MP3/WMA/AAC/WAV Receiver CD Receiver with LCD Display, USB Direct Control for iPod, and Built-In Bluetooth AUX input to easier plug in your portable media devices 3 RCA Hi-Volt preouts for adding on external amps and speakers simplify system expansion HD Radio, XM, and Sirius Radio Ready Built-in MOSFET 50 W x 4 amplifier for excellent sound quality