Hello All. Does anybody have any experience with aftermarket window sealing strips for 2000 DTS or DeVille as compared to the factory pieces? The part # from Source One on Ebay is 15807083. GM Parts Direct uses the same part #, but it's for a 2009 Deville and doesn't look the same. Figuring out exactly what part # I need has been challenging. The dealer wasn't even any help. They wanted to order it and see what came in, haha. Anyhow, I think I have exactly what I need now all figured out. I was just wondering about the quality and fitment of the aftermarket piece vs. a factory piece. A used one on Ebay is 35-45 dollars vs.19.99 for the one from Source One. I haven't been able to find much info anywhere on these parts. Mine were ruined in a wicked hail storm. Thanks.