I have come to the conclusion that everything is a common problem sooner or later.
I would pull the radio and unplug all the wires, spray them down with contact cleaner.
Check the fuse directly on the back of the radio as well.
Now the most likely source of the problem would be a failing or dirty radio power switch. Put a towel down so not to stain the plastic parts some sprays make plastic whiteish.. Then hit that whole area around the round power switch, the theory is some of that cleaner will get into the contacts. Now with the car off hit that button on and off a bunch of times.
If it works send me 3 easy payments of $49.95, act now and I’ll take only 2 easy payments.
Madeline & Kristine