Alpine CDA-9825 Car CD Player

I just had this head unit installed in my Jeep Grand Cherokee, it looks and sounds excellent. In addition to being XM ready, it is also Sirius ready. I had the Sirius SIR-ALP1 tuner installed with the head unit. It works flawlessly. The MX feature provides rich and full sound. The only real downsides I have found is that there is a slight delay when changing the channels on Sirius and that it is unable to play MP3 files. This is the 1st Alpine I have owned and I am thus far very pleased.