radio cd changer port via interface. What I'm really after is a small laptop that can be easily removed. I plan on loading nav and use external drive for mp3. Then when I travel, the laptop is removed at hotel or other hotspot. You get the picture. I don't expect killer audio but then it doesn't take a lot to please me. I'm currently using a Dell Axim but unfortunately it doesn't multitask very well (nav + mp3). I like the system that's in my truck but have decided that I don't like it as a stand alone. Great for trips but bites when bouncing around town. Anyway, I'll see how the Mini works out.