Has anyone or could I replace the 2nd row bench with ford Explorer Captain Chairs?

IF you are talking anything to do with new Mazda 2.5 Turbo TC CX-9, then no there is Zero compatibility with anything to do with Ford and new TC CX-9.
TC CX-9 has zero design input from Ford and has Zero Ford product,stats,dimensions or DNA.
Only one vehicle is shared now and that is current BT-50 and Ford Ranger ute/pickup.

Remember Mazda has almost 100% completely divorced from Ford, this will be completed when the last BT-50 Ute is made in joint plant in Thailand with the Ford Ranger.
From late 2019 Mazda will replace the Ford/Mazda BT-50 with an Isuzu made product.
Plus the recent technical tie up with Toyota where Toyota bought about 5% of Mazda stock and Mazda bought 5% of Toyota.

Ford and Mazda is dead.
 
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