[II kings 9:20]

My guess is that the DVD map disc is not interchangeable though you would have to wonder why not. You might run down to the local MB dealer and give thier disc a try, I am sure they have extra demo discs in a car or two you could try on thier lot. That is the only way to know for sure. You might then see if you can get a burned copy off an MB forum or ebay, I would guess it would be $500 or so for the disc from the dealer assuming it works.