I have replaced the Aerial on my car because the original one broke (car wash), the factory replacement is quite expensive, so I replaced it with a cheaper one.
The stereo itself seems to work fine, the CD player works, AM radio stations also work without any issues.
The problem is with the FM stations. The stereo can have normal sound output, but often gets quiet, sometimes goes mute when trying to listen to FM stations. This happens to all the stations at the same rate at the same time, so I'm struggling to believe its just a reception thing. The change in sound levels seems to be mostly random, the car can be sitting still and the sound levels will still change.
This happens more often than not. I have read a lot about needing a good ground for the aerial to work, and wonder if this is part or all of the issue. I tried to ground it better, didn't make any difference, but might not have grounded properly either.
Thank you for any ideas.
2001 Holden Commodore VX Berlina Series 1
Stock Stereo (Eurovox, don't have the model)