Audi Repair: Radio Problem, radio problem, audi a4

Question
I have an Audi A4, 2003.  I got in my car today and the radio was seemingly "dead."  In the manual it said it should read "safe" if the a problem had been encountered by the security mechanism or if a fuse had been blown.  However, my screen was just blank and I couldn't get any reaction from the radio by pressing any of the buttons.  I didn't know if you might have an idea what is going on?  

Thanks!

Answer
This is probably the fuse on the very back of the radio.  Or possibly it is not getting any power. Either way you will have to take the radio out of the dash.  You will need some radio removal tools for that.  A friendly dealer may be able to help you out too...  Let me know,  Jan