I purchased a 2013 Le two weeks ago and the dealer only had one key with the car. I need to get another key for my wife. According to the manual there is (type A) two Master Keys and a Valet Key, (Type B)has Two Master Keys. Why is there two options? I am trying to see if I could get a transponder key instead of paying $300+ for another Master Key. Has anyone bought a transponder key and had it keyed and programmed successfully?