A4 B6 radio gets quiet on its own and slowly gets louder?

Hello, in my 2003 A4 with an Audi Concert, the radio (whether CD changer or FM) goes completely silent while driving and then slowly gets louder again. This lasts up to two minutes and is extremely annoying. It's independent of speed, as it also happens at the same speed with cruise control. Is the radio defective? Is this a "function"?

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EddiR
3 years ago

Yes, this is an extra function! Speed-dependent volume control. If, however, the radio becomes louder with increasing speed and ambient noise. And if you get slower and also the noises less, it should be quieter.

Aaaber, this function can also be deactivated

Minijobopa
3 years ago

Control all current connections, maybe there’s a bad connection somewhere.

Checking the battery can be weak the good.

Minijobopa
3 years ago
Reply to  SupplelyJam255

nee doesn’t care if, for example, the light engine doesn’t load the battery is weak. to check, you need a measuring instrument and a bit of an idea of matter.

Just listen to the family — or to the circle of friends, usually someone finds it.

ronnyarmin
3 years ago

If the battery were so weak that the radio will fail, the start of the engine would not have been possible.

hoermirzu
3 years ago

Does the device already have an automatic volume reduction with incoming phone calls?

ronnyarmin
3 years ago

I suspect a defective soldering site in the device.

ronnyarmin
3 years ago
Reply to  SupplelyJam255

A solder joint with bad contact leads to a fault due to vibrations. Or temperature fluctuations. Or both. It’s uncalculable.

Detections can be made by examining the soldering points with the magnifying glass.