I have the exact same problem with the radio's sudden death. It is a original oem radio without a navigation. The 2001 fuse layout is different from that of 2010 model. The 2001 model has only 2 fuses related to RADIO (#11 & #40) as micropterus indicated. And I checked both fuses and they are OK.
Has anyone find out a resolution or fix? Any help would be appreciated.