Hi all...I have an 07 V8 xc90...when I have the stereo set on Aux with no cord plugged into the jack, I hear some weird squealing/ interference noise. When I plug the wire (3.5mm?) in, then I still hear it somewhat through whatever device is connected. I have changed the aux cord a couple of times...no luck. If I wiggle it a little, it sometimes goes away. Any ideas?