I tried to remove mine so I could use them again. but they were glued very well into to body it was very difficult. I tried cutting a slot and using a large guitar string that was wound to cut thru the glue with very little luck. I then carefully put a hack saw into the slot and after lots of cutting with a utility knife and then the hack saw got them off but did some damage to the trim that is glued to the window itself. finally I just bought two new ones. Because they are glued to a flange in the body it is nearly impossible to do this because of the curves involved, but with patience it probably can be done.
