I can't say for sure, since I never directly spoke to the installer, but nothing like that came up in any of my conversations with the tinting place I went to. If I roll the window all the way up and pull down on the vinyl strip at the bottom, I can see where the tint ends, so I don't think they had to crack anything open. I haven't noticed any problems or rattling issues. It is the BEST, you won't regret it (and I say this even though I only have 50% all around).
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