How do I fix the stereo in my Audi 80?

The stereo in my Audi 80 is not working properly and I'm not sure how to fix it. I have tried changing the fuse and checking the wiring but nothing seems to be working. Any suggestions would be greatly appreciated.

First, check to make sure the stereo is properly connected to the vehicle's wiring. If that doesn't work, try resetting the stereo by disconnecting the battery for a few minutes and then reconnecting it. If the problem persists, it may be a malfunctioning stereo and you may need to replace it.

Have you tried removing and re-inserting the stereo's fuse? Sometimes it can become loose which can cause issues. If that doesn't work, it may be a faulty wiring connection that needs to be fixed.

Before trying any electrical fixes, check if the issue is with your vehicle's battery. If it is low or dying, it may not be providing enough power for the stereo. Take the car to a mechanic to have the battery checked.