I just bought a bolt on mesh grille for my 15 Cruze. I held the bolt on over the OEM grille and didn't like how I can see the factory grille behind it. With the screws and locking nuts provided with the bolt on grille, do I need to cut out the grille and attach the bolt on to the factory grille shell? I've watched YouTube vids to remove the front bumper but its a PITA to remove compared to my 15 GLI (︶︿︶)