Wetsounds for illusion question

I am getting ready to order 2 pairs of wetsounds pro80's for my Malibu, but my concern is will they fit in the factory holes. I have seen pictures of 1 pair on an illusion tower but not two. I don't want to order two for the illusion tower and find out that they conflict with one another because of the size of them. If they don't fit in the factory holes I was thinking of putting one set on the lower mounting factory holes and one set on the bar that runs across the tower. Has anybody here dealt with this issue or have pictures of 4 wetsounds mounted on the illusion tower.