I have a 2012 Kia Soul ! with the Audio Upgrade Package, and I was wondering where the cap volume is? I don't want to try it too hard and blow any speakers. So what I'm really asking is what will happen if I were to turn it up all the way? I know the sub sucks, and I wouldn't lament too much if that blew, would be great to replace. I've searched the forum and the internet and there doesn't seem to be much on the topic. Anyone know?