I'm pretty sure the grille & headlight surrounds are aluminum, so i wouldn't use steel wool. I've manually stripped anodize, starting with 220 dry, then wet 320, 400, 600, 1000, 1500, then polish using a medium coarse polish(Nu-Vite) & then a finishing creme(Nu-Vite).It's an arduous process.....a lot of finger ******* on those grille bars. But it looks absolutely bitchin if done well....of course it has to be maintained by intervals of polishing. However Nu-Vite has introduced a cleaner creme that will preserve the finish as it is when applied, will not discolor & it's a simple wipe on, let dry to haze, & wipe off. Otherwise, Your grille & headlight surrounds must be chemically stripped, repolished & reanodized. Quality Microfibre towels are the ONLY thing to use for polishing & cleaning. Best damn towel to use for drying Your car after washing too.....better than chamois. Use clean towels only....if You wash & reuse, wash in MILD soap solutions(so insured they rinse fully & no soap residue remains), NO fabric softener or other agents, tumble dry & NO dryer sheets.