Wierdest radio issue ever!

So my friend has an 01 focus zx5 i believe(I personaly know nothing about fords). We were driving to work and all of the sudden his stock radio starts blinking. The sound was fine, nothing else was wrong except for the blinking display. I have personaly never heard of this on any other car ever :). We tried turning it off and then back on, still blinking. After work (11 hours later) it was fine. Was this just a fluke or something he should fix? Thanks in advance.

i dont know. CHANGE IT:evillol:

Wow thanks thats a big help :banghead: :shakehead anyone have any good advice or info?