5th gen trunk speaker fit in 4th?

[na93prepre]

Someone is selling a custom 5th gen sub enclosure for dirt cheap with a Boston 12" G2 sub. This was installed in the right passenger corner of the trunk. Do you think this will fit in a 4th gen?

here's a link to the pic

http://i22.ebayimg.com/07/i/000/84/ae/0d4a_1.JPG