I have a 2011 Sahara Unlmited. The vehicle is black, but both the front and rear bumpers have what looks like a painted silver cover in the middle. The cover looks like it is only held on with a few phillips screws. If I take these off does anyone know what the bumper looks like underneath? The front one looks like it will come right off, but the rear looks like I may have to drop the bumper to access the screws.