hey i just got some black interior panels for my z28,and going to be puttin them in prolly this weekend,now since i have all the panels off,i was wondering,what usually rattles inside our cars,i hear lots of rattles,so i dont know where they are coming from,also,i heard there was some kind of spray on sound deadner,could i just get me some of that from the local auto parts store,and spray everything behind the panels?what do you guys suggest i tighten up,thanks alot.

I got a little carried away and used dynamat extreme on the backside of all the plastic in my car. I made sure that if there were places where plastic contacted metal of other plastic that I got this area well to keep the two surfaces from rattling on each other. I'd just make sure to hit all of these contact points since you got the car torn apart.