Clear plastic sheet door seal part number?
 

I was wondering if anyone had a part number for the clear plastic sheet that goes inside the door and attaches to the inner door skin to protect the door card from moisture coming in through the window seals. I ripped mine during sound deadening installation and I'd like to replace it with something that's cut to fit correctly (assuming it's not stupidly overpriced) instead of just cutting up a clear plastic tarp.