I have a 2010 Sierra SL ext cab. Due to circumstances, I could not factory order a truck, so pretty much had to take the closest I could find to what i wanted. It actually seems to work out cheaper to add the options that I wanted afterwards anyways. Some packages have stuff I do not want, but some parts that I did. I really want a leather wrapped steering wheel, with the radio controls in it. I already have cruise, and have the standard radio. I cannot find a web site that gives GM part numbers. Does anyone know what parts I will need to get, and what the part numbers are. I am not interested in wood, and the colour is ebony. Near as I can tell I will need the wheel and the radio controls only. Are there any issues that I may run into?