Pioneer DEH-1900UBG - Car stereo with RDS tuner, CD, USB and Aux-In.Pioneer DEH 1900UBG 4 x 50 Watts Car Stereo Radio CD MP3 Radio USB AUX Player (Green Display) Get pristine sound from the DEH 1900UBG's built in amplifiers that deliver 4 x 50W of pure, proven MOSFET power. For more power you can use the RCA pre out to hook up another stereo component, like a subwoofer or an extra amp for the rear speakers Enjoy CDs or CD R RW with support for MP3, WMA and WAV files, or use the illuminated USB and Aux in if your music