:? Ok, in the 87, would a 8" sub be good enough???? or do I have to go with a 10"...the reason is I want to put the sub, amp and 2 6 by 9s in the smugglers box, behind the cover, however I dont want to take up all the room and I want to keep the spare .......any suggestions....

Bazooka Tube right behind the seats. But I just went with the spare in the bed with 2 10's, 2 6x9's and the amp mounted in the wall.