I found deadening my trunk was the easiest to do, the carpet is easier to remove than a door panel and there is no moisture barrier, etc to deal with like on the doors, it just uses alot more deadener than any othe rpart of the car, but you hav emore space to work in so teh actual job isn't that hard, I'm not sure how much deadener I used but it may have been almost 40 sq' including the lid
