Many years ago, I replaced both the long and short felts on my 2002 w/o removing the sliding panel. My Coupe sunroof panel was removed for the felt installation and I think that is the correct way to glue in the felt strips. The video is very informative, but he didn't say how important it is to make sure the felt is BELOW the surface of the roof and sliding panel. Then when you wash and/or wax the paint, you will not harm the felt "top" surface of the strips.