I have a late production 2018 Red P100D with black interior. I get occasional spots and small stains on the center console and door cards. I have been using damp microfiber towels (no product just warm water) to clean my interior. However, over time I find the black imitation leather (leatherette) Looking a little more grayish in color. I need to product to bring back the factory black color but do not want a shiny end product such as you would get from a “armor all” protectant. Any help would be appreciated.