How do I troubleshoot audio issues in my Audi A4?

My Audi A4 has been having issues with the audio system. The sound cuts out intermittently and sometimes it doesn't work at all. I've tried turning the car on and off, but that doesn't seem to fix the issue. Any suggestions?

Firstly, check the audio settings on your A4. Make sure the volume is turned up and the audio source is selected correctly. If that doesn't solve the issue, try resetting the audio system by disconnecting the battery for a few minutes. This can often fix minor audio problems.