This system provides all the tools I was looking for...AUX in, MP3 play, AM/FM, etc. The only problem is that there is WAY too much bass output, even after unplugging the subwoofer and trying all the equalizer settings. The low frequency problem seems more enhanced when listening to the radio, something that I now avoid. One thing this unit does better than the old JVC unit it replaced is that it somehow manages to separate the stereo channels far more cleanly. The separation is easily noticeable not only on my familiar MP3 songs, but also with FM broadcasts. If you like wildly enhanced bass output this unit is for you. If you would love making Barbara Streisand sound a lot like Johhny Cash, this unit is for you. For me - I'll be returning the unit.