How to troubleshoot a non-functioning radio in Audi 80?

Recently, my Audi 80's radio stopped working. I have checked the fuse and it seems to be fine. What other steps can I take to fix this issue?

Check the wiring connections behind the radio and make sure they are secure.

Try resetting the radio by disconnecting the car's battery for a few minutes and then reconnecting it.

If the problem persists, it could be an issue with the radio itself. Consider taking it to a professional for further troubleshooting or replacement.