Nice video (as are all your other videos) Sadly my larger front Pano glass sheet is what rattles and a previous member shows in his video to put electric tape strips on the rail system that the glass sheet rides on.
I can't find that video, and need to do this repair again myself, so I will try to take a video of it soon. Just kinda hard with work and Xmas coming up.

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I swear, my cars are like a girlfriend.
Sometimes its a rough ride, sometimes its smooth motorin'.
Sometimes she doesnt like how i treat her and sometimes i dont like how she behaves.
BUT at the end of the day, she loves it when I am inside her.

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'91 850i
'05 X5 4.4i
'09 Clubman S