I have searched and there are a couple questions I have on the 3x20 series MMM 72 deck.

What year was the auto connect MMM deck introduced?

How do you determine if the deck is auto connect or not? From what I can tell early models were not drive over.

When did they start the auto pto option? If it is not installed is it easy to install and what are PNs and cost to do so?

Do the Load n Go brackets fit on the 72D MMM for a 2011 3x20? I see a BXX10534, but it appears to fit 2012 and later is that correct?

Thanks!