I got LLP in order to put on the outer door skins. I wanted it to help obsorb the waves behind the speaker and help outborne sound more in the doors. Unfortunately, I didn't comprehend how thick it really was and don't think I can fit it there. So, my dilema is how to best use it now. Is it worth trying to put it on the inner door skin and apply a small amount right behind the speaker, or apply it just to the cieling, or to use it just on the floor? I have heard the floor does not emmit as much sound as the cieling. Is there any truth to that? Sorry for the run on questions whew haha.