Has anyone Dynamated their roof?? Mine rattles like hell when I have the "bump" turned up! Wanted to know how difficult it is to pull down the headliner. Thanks!

I don't know about the headliner, but I wouldn't get Dynamat. Look HERE (http://www.secondskinaudio.com/) there stuff is cheaper and better IMO I also like paint on deadener better than the mat.

I have used lot's of Dynamat, in my high school days building big car audio systems, it works great, but it's very very expensive when your trying to cover the entire cab, doors, back wall and floor and cieling, there are other materials like dynamat on e-bay, do a search at google.com and you will see many varities. All I know with all the power and sound we all want to hear, with-out any materials, I will probably shake the truck appart eventually.....