Not 100% sure, but relatively sure you won't need to plug anything into the back of the MCS to install the changer, should be good to go by just plugging in the D2B and electrical connector to the changer. Plus the version coding of the MCS unit at the dealer, yes.
Unsure about the flaps, haven't had it come up yet, not a hot item at our dealership I guess.
I can try to remember to ask on Tuesday
Gilly
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