With the glovebox ribs removed I installed a lot of nut plates on each rib to accommodate the remote audio panel rack and one of the remote backup batteries. The tight fit of the of the attach holes for the audio panel necessitated 4 nut plates, each with 2 rivet holes in a row, due to the edge distance. For the battery I included 4 extra nut plates on the right side rib just in case there was any problem with installation on the left and I had to relocate the battery. I also removed the components of the center panel so I could return it to AFS to resize the access opening for the IFD540.