Question to all of you who have successfully attached the rear self adhesive (stick on) vinyl number plate to the back of the car. What did you do with the "slot" ("gap") on the surface where the two screws were? Did you stick the plate on top of it like it was or did you try to cover (fill in) the slot? The front looks easy since there are just two small holes from the screws that can be filled in with blu tack or a silicone filler. But I am concerned abt this big slot behind the rear number plate holder and not sure what to do abt it. I could not find any video on Youtube how to handle it. Thanks for practical advice (and photos would be appreciated!)!