This idea is one of my main objectives with my n810. I just sent a reply to a thread 'media center complete' with my current setup(which WILL be expanding). Currently, My mini-sd(4gb) is loaded with mp3's, And it plays Great! The output of the ear jack is much higher than my Alpine! i just wish that an app could be written to do eq. settings. I first used the cassette adapter from my xm 'till I hard wired the 810 with cords and a switch to change from one unit to the other.

As far as the FM radio goes, i have the applet installed and it starts, just that in the radio help it says to use a compatable set of ear-sets for the antenna(do they mean the ones that come with the unit-cause they aren't workin'). Would be nice to see it work, but no bother.

So, Go extreme with your idea! MP3's over skippin' CD's Anyday!!!