I bought a set of Chrome Grille inserts for my 2000 Blazer. The instructions said no cutting or anything but when I keep looking at the instructions it says to remove grille and put inserts into opening. My problem is there is no opening. Just the black plastic factory insert. Does anybody know if I have to cut them out. Thanks for the help. Also anybody know where I can buy tail light covers. I am in Oakville On Canada Thanks