This MOSFET 50 x 4 CD Receiver plays CDs, MP3's, and WMA discs, so turn it up, using the unit's Pop-up Rotary Volume Control. To fine-tune your vehicle's sound, how about this set of tools: EEQ™, SFEQ, the new EQ-EX, AND high-pass and low-pass crossovers. The DEH-P550MP has our new Supertuner® IIID™ digital tuner for superb FM and AM radio reception, and it's XM-Ready. It also features a Multi-Color LCD Display, a steering wheel remote, and a detachable/flap face. Premier two-year warranty.