I started a project at the start of Covid to redo my sound deadening in the interior, starting with driver door. Very slow project to say the least. I have removed all the peel and seal, this took the longest but a heat gun, plastic scrapers, and mineral spirits did the job, if anyone is wondering and wants to tackle this effort. This product, which worked fine but of a lesser quality, uses asphalt (not healthy), and wanted to upgrade to something better. I have now installed the Damplifier Pro sheets from Secondskin based on different articles and recommendations online. 100% coverage is overkill but I added where it made sense and does not get in the way of the operational aspect of the inner skin. This will help with vibration, some road noise, and help keep car cooler which is nice here in Miami. I will add some to the outer skin behind door panel, to help some of the center metal that does flex. I did clean the inner area and started to order replacement parts for a few items so when I paint the car, I have them on-hand.
Here is quick phone picture showing some of the product installed. I used a roller to make sure no air is trapped. The material is much better and really cuts back on the vibration, which is noticeable just opening and closing the door. The sticky paper does work and pulls off lots of debris.

In regards to the replacement parts, I am going to re-grease some of the window mechanism and will provide product usage. Currently waiting on delivery of them. Hopefully this help someone and wanted all to know. The window guide/track/channel that is a flocked rubber material is currently on backorder from BMW. I know of someone waiting 1.5 years so far. I added myself on the list as well but for now, I wanted to clean 30 year parts without damaging the rubber. I have some cracks and can't let it get worst. I researched how to clean flocked (suede/velvet) rubber material and looking up jewelry organizers helped me. Not much out there as many liquids or cleaners will remove the flock portion. A good vacuum while brushing a small detailers brush helps but still more is required. I then pull a few sheets off a lint roller per my research, and using the blunt part of the brush, stuff it in, and run it along the flock material to adhere and then I can pull it at 90 degrees, to maker sure not to smear any of the dirt/lint. Here is a picture:
