AA hand. A flat call here?

PokerStars No-Limit Hold'em Tourney, Big Blind is t200 (7 handed) converter

Button (t3073)
SB (t2540)
BB (t2647)
UTG (t1475)
Hero (t4545)
MP2 (t4907)
CO (t13843)

Preflop: Hero is MP1 with A[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/club.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to t600</font>, MP2 calls t600, <font color="#666666">1 fold</font>, <font color="#CC3333">Button raises to t3073</font>, <font color="#666666">2 folds</font>, Hero ...

My read on MP2 is that he likes to call alot with Ax or two high cards, no matter how the preflop play is turning out. With Button going all in here I am thinking that a call here is the best option to not scare away MP2 and get him on the flop instead?

How would you have done? I'm interested in all kind of thoughts. I'm thinking a call here to not scare away MP2 since he may go along with just calling Button.