Porsche radio

[msojka]

I have a Porsche 968 , 1994;the radio locked on me when I was not fast enough to enter the code number. I have the right code but do not know how to reactivate the radio, the display is just blank.
Can someone define the steps necessary to reactivate the radio and get the "Code" word back on the display please?

[Drdogface]

I would disconnect the battery again..then re-connect after a few seconds.