Easiest way is to remove the grill first so you can access the rear and get at the plastic push screws that hold the number plate mount onto the grill......... To remove the grill you need to unscrew the 2 torx screws at the top of the grill under the bonnet and then remove the 2 phillips screws underneath the numberplate mount itself inside the centre grill and release all of the plastic clips around the grill and lift it off, with the grill removed you'll see the plastic push screws which are easy to push out and should leave you mount-less HTHDave