I know I have mentioned the superb interfaces of MOG radio, Pandora and Sirius, but I actually just got to reading the manual and the sirius functions are more than you can imagine. I just discovered that there is a one hour buffer with sirius that you can replay songs, etc. There is also a favorites alert for your favorite artists, songs or sports teams. There is also a function called Traffic Jump that toggles between broadcasting your music and traffic/weather. This is kind of neat, but Im sure it could be rather annoying. It would be nice in the event of tornado watches, etc. though.
Im glad I finally got to it!