I depends on what you want to do. You can fit any Wet Sounds you want on the FCT3 tower up top with out any adapters, just using the clamps that come with the speakers.
A pair of 485's fits, 3-Some, Double Up, pair or two pairs of 80's, pair or two pairs of 60's or combo of 80/60 etc...All of these will go up top on the cross bar.
Now if you want to go for the factory look and have speakers on the sides. Yes we do have a special adapter. The part is called the ADP-Nautique-B. You would use this adapter with the PRO 60 G3 versions. The G3 version is a special version set up to adapt to plates like this one. We also have the 80G3 and MB-8 G3.
So you can go with any of those on on the sides if you prefer that look. We are updating the web site with a ton of new stuff so it takes some times to get everything up there. These are in stock and shipping.
You can give Justin or Omar a call at the office at 877-938-7757 and they can get you more info
Here is a pic of one with 2 pairs of the brand new 2010 PRO 60