So i hear this sound every so often that comes and goes that is either in the dash by the screen or up in the mirror assembly. It sounds like some sort of short / the crackling / buzzing sort of noise you get when you rub two low-voltage / amerage wires together. Is there any sort of known defect that sounds like this? I'm hesitant to bring it right back to the dealer because it's like 45min away and i fear they will get 'lucky' and not be able to reproduce the issue. So far it has happened 4 times and we've probably driven it about 20 times.