I have a 2003 Avalanche with dark charcoal interior and was wondering what color was the Nifty Products Catch-alls mats that people have been buying. They come in Grey and Charcoal. But I don't think my carpet is Grey or Charcoal, it is more of a dark pewter color. The product numbers for the three piece Catch-all set are: 631431-Charcoal, 631438-Grey. I have also seen 631455-Dark Pewter. Does this Dark Pewter match the color in the 2003 avalanches? What color mats should I get?