08 sut sub and amp

[lasvegash2]

does the 08 sut have the bose sub in the center counsel? i know the window sticker says 7 speakers so im thinking 2 a-pillar 2 front door 2 rear door and 1 sub...am i correct? is the bose amp still in the center counsel also on the 08 sut or is it built into the radio? is there a difference on the base radio and the upgraded radio when it comes to sound? thanks, scott