Now, I need to ask or find out for myself; can MDP program the transponder (RFID) from a mercedes key fob that has the correct part number (DOC/MDC: 267 102 334) and RFID (FC C ID KR55) to work with a companion duplicate Chrysler Crossfire key. These Mercedes keys can be bought on the internet. I paid $250 but have seen them for less. Because the dealership cannot reprogram the RFID transponder I ended up sending the key back and paid a hefty restocking fee.. I apologize for posting something regarding the key fob in this skreem thread but it is related to the MDP service..