I have the same thing on my 2004. It is not the fuse, at least not on this one. The radio and I mean the whole panel just quits working. It will stay quite for several trips then comes alive at the next start up. Some times it just stops in the middle of a trip, or starts up.
I have checked the fuses, as that was my first thought the first time it stopped. Imagine my surprise when the radio came alive the next trip!
Does anyone have any ideas on this one??