They all come with a painted license plate holder, and typically there are self tapping screws into the plastic bumper. A scrap yard would be fine, the dealer will sell you one the color is the issue you might have to paint it, check your Mb dealer body shop. If you got it from a dealer make them install one. I have mine in a bag and the next owner gets it when I trade it, they installed one on my "S" , I took it off put in a couple of painted plugs.