so, my sync crashed yesterday afternoon. wouldn't connect to phone, and usb music drive was stuck and not recoverable. worked fine in the morning. tried throughout the afternoon to get it all working, but no luck. there's always the "master reset" option in settings, but I didn't want to lose all my Sirius favorites, and my nav addresses. this morning, I reloaded my tune from torrie. no changes, just reinstalled. it reset sync, as usual, and everything is as it was before, without losing anything.