I replaced my battery and now my radio will not turn on. on 1999 Mercedes-Benz C230

I have my reset codes but my radio will not turn on.

Asked by for the 1999 Mercedes-Benz C230
Have you checked all the fuses? What does the radio say when you enter the code? If it still says code, then it is the wrong code or it's being entered incorrectly.
1 more answer
I disconnected the battery again and reconnected it. You must turn on your ignition within two minutes for your car to request your radio code. Then enter your code.