Does anyone here use their Sirius? I rather like it, but noticed about 50% of the time when I press the Browse button, it just hangs forever. I can't remember the loading message, but it never shows the guide about 50% of the time. It's really annoying, and seems to happen whenever I let a passenger take the controls and try finding some music. This means I need to know all the channel numbers or names, and you can only save 18 favorites or so