[HiLifeTitan]

I recently installed a Kenwood Excelon DDX6904s double din head unit a month ago and lately i've noticed that intermittently, the volume on head unit would get really loud, almost like it maxed out, when I shift back in to park when I get home. Funny thing is, when I turn down the volume, the volume control says its at a low level, like where I normally keep it (Around 10-14). Sometimes the volume won't go up, but there will be a quick pop from the speakers. I've double checked all the wiring and it all seems fine, so my guess might be an issue with the head unit. Any one had an issue like this before or might have some suggestions? Its not all the time it happens but once in a while. Thanks for any help on this issue!