I have an '87 Grand National and have purchased from GBody, the door panel insulation kits. The kit came with a very, very thick piece of plastic like a moisture barrier and a precut piece jute for each door. Can anybody help me with the order of the installation? I would think it would be the plastic then the just but am not sure it's not the other way around in order to hold it all together, nice and neat.can anybody help me with the order? thanks