The original headliner had about 1/2 inch foam and then the skin from the "Nauga". The one the "professional" screwed up had only, at most, 1/16 inch foam backing. The other guys that are more expensive want to do it in cloth... I know the foam backing helps deaden sound as for the last 3 months I have been driving with no headliner and it sounds like an empty 55 gallon drum... Suggestions please..