Removing The Acessory Bar/Tray?
I don't know where you can put them once you remove the tray.
But there are 2 nuts under the rear deck that hold one end of the tray and if you want to reuse it, you'll have to take the back seat out to remove them. The other side of the tray has a round plastic pull screw and metal clips in the center that allow you to pull it down for service. There are 3 big computers plus some relays in there. Its a lot of work to remove it that way, but if you realy don't want it, you could just rip it out. Either way, its a lot of work for very little gain. Good luck