I have been using my usb with no problem until the other day then it just changed to the radio and when I changed to usb it said could not connect. I took it home on the pc and it said it wasn't formatted and would not format it. I loaded another just like it and it worked for about a half hour and it did the same thing, I'm wondering if it is getting to much voltage and burning them up. I'm calling the dealer to see what they say, wish me luck.

 

Getting a new radio as soon as they get it in, can't ask for more than that.