On the drivers side seat, side panel on backrest, I have a "rash" about the size of a fifty cent piece most probably made where the previous owner had "slid" into the seat sideways and rubbed on this area every time they entered the car. This is a Z3 and it is very low to the ground so I can see this easily happening if one is not careful. The area in question is very rough and grainy compared to the surrounding leather and a bit lighter in color. I doubt the "rash" effect can be fixed but anyone have Ideas for making the area a bit darker to match the surrounding light tan leather? So far my wife has thought of using a moistened tea bag, dabbing the area a little at a time until the color darkens just a bit, but I'm lost on this one....Thanks...Michael P.