radio on 1994 Mercedes-Benz E320

i have code but cant get radio on

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3 answers
I had the same problem; You need a new code. It seems that for whatever reason the radio stopped working, ie; battery out, the radio no longer recognizes the code. My local repair shop has a lic. Mercedes repair guy so he called the Mercedes showroom he used to work in and they gave him a new code. He took out the radio and then followed the procedure for re-entering the new code.
Hope this helps.
The fuse is good.
there is a fuse on the back of the radio, to check that you have to remove the radio and rmove the fuse and check it with ohm meter.