I'd like to restore my driver-side interior door panel with spray paint and want to use the correct color, preferably from GM. Is the interior color code listed anywhere? (the VIN is no help), To me it appears dark brown, almost black. Internet research has listed possibles as "ebony" or "dark pewter" as colors, but I'd rather not guess. Used interior door panels on Ebay seem to be in worse condition than mine, so I'm going the paint route. Any advice?