Hello, I had signed up here because we have a problem with our Kia. For 2 days the subwoofer has been vibrating terribly, since the 3 years on the audio system is long gone, you can save yourself the way to Kia (unfortunately). I have attached a video to it… Does anyone know the problem and possibly what it is? Maybe only the speaker is broken… Can you possibly simply replace it? Know it from the VW group so..