I have a new 30g video and I really never use it in my car. It is always pluged it so that it charges for the gym. I like using my mp3 cd so I can see the songs on the radio, plus it is easy to skip around songs while I drive. If an intergration kit comes out I am sure that will change.
13 F10 535xi JB/B working on it
11.75 E93 M3 MR/Black Stock (wifey)
11 F10 535i AW/CB Mods Gone