Hello guys. I have a 2001 SS with the stock sound system. I have a rattle/vibration either in my dash or drivers door when my audio is at a normal level. I can't decide exactly where it is. I can turn down the bass below midrange and its gone but thats no fun. The sound quality is still good so I don't think there is a cracked speaker but aint sure. Any one else ever have this and know how to fix it?