Audi Repair: had instrument cluster replaced, now radio problem, blown fuse, radio problem

Question
I have a Audi TT 02.  I just had my instrument cluster replaced, and when I got in the car, the radio was in safe mode.  I returned to dealership and they made it work.  Then, the next time i turned off the car, the radio did not go off with the car.  I manually turned off radio.  Next time I went to drive it, the radio was again in safe mode.  I called dealership, and they said they would look at it, but most likely I would have to replace radio.  There was no problem with radio before instrument cluster was replaced.  Could this be due to faulty cluster, or dealer error?  I haven't taken it back yet, but just wanted some info before returning again to dealership. Thanks

Answer
It sounds like the radio is losing it's memory, which may be a blown fuse.  If you have had the cluster replaced then I would have the dealer check this out; But it should not need a new radio.  It does sound like they maybe made a mistake which caused the problem.