I found the part numbers for the grills at:
http://www.hummerofsiouxfalls.com/accessory.asp
Match your H2's body color or use the black grille on any body color with this insert. Price includes parts and labor. Pewter-shown, Black-12499002, Yellow-1249903, Sage Green-1249904, White-1249905, Sunset Orange-12499006, Dark Red Metallic-12499007
Klaus
"God made some men big and some men small, but Sam Colt made them all equal."