I've had a very hard time getting mine to stick on the front plastic behind the rear view mirror so I'd be interested in knowing how somebody did this as well unless they put a very shallow screw in or something. For the rear window, there's a lot more clearance behind the plastic trim I believe so I would attempt to screw it in, after checking of course. For me I just installed it between the heat strips on the rear window as it doesn't bother me to see the little camera. It has to be between the heat strips though because I made the mistake of attaching it where the heat strip was and when you use the rear window defroster the camera comes off.Has anyone gotten the rear dashcam to stick to that plastic trim piece at the top of the window? I don’t want to put it on the glass, it’s already hanging down far enough (visually annoying in the rear view mirror) if it’s on the plastic trim. But that plastic trim seems to be impervious to all kinds of double sided tape that I’ve tried. It’s like teflon or something.