I’m not exactly sure what the issues is with it. If I recall the issues I’ve read about it causes feedback. I’m not quite sure if it would be related to your issue at all, just thought I would mention it because of the issues I’ve read about in the past, to at least make you aware of them if nothing else.Are you saying that the active noise cancellation is picking up the speaker and cancelling out the sound? I don't think it can do that, but maybe? I did only listen to the Alpines with the door open... maybe it was getting picked up as engine noise? Hm...