2005 chevy tahoe

at 11:48 this morning my radio froze in on position. None of my functions work,
volume, band, equalizer, clock ect ect. Clock froze at 11:48 Only way to turn off radio is to pull fuse. Have same problem when I put fuse back in.
Any Thoughts?

could be the BCM. disconnect the battery negative and short out the vehicle electrical system. now with that discharged for 15-20 min then reconnect the battery negative .. see if it resets..