The rear side window drains can rattle against the plastic part as shown by the red arrow. One of my sides was clipped into a holder right at the very bottom and will be held taught and away from the contact point as shown in the photo. My other drain was just hanging loose which then lies in the path of the green dots and can rattle. It is hard to put the loose end back into the clip as it is right down the bottom and you are doing it blind and by feel only and you don’t want to create a kink.