Anyone have any experience? I need to replace the rear curtain on the top, it's a glass window w/ defrost. The rear curtain is a seperate piece from the top itself. I haven't torn into it yet and was curious how tough it is to replace. It looks like a couple of zippers possibly and held at the bottom by the trim piece? I can pick one off of a wreck that recently had the whole top replaced but want to make sure I can remove and transplant without ruining anything (and it not really be too difficult).. Haynes and Chiltons were worthless