Installes the rear seat floor soundproofing and then the floor covers. I was surprised that the plans call for 470 4-4 around the perimeter of the floor panel. UGH, OH well!!! Took a little gyrations for an old man, but was able to gett them all bucked and set. I ran out of Stick Stuff Spray and the nearest place in the valley was 40 miles away. I picked up some Pilobond, brush on which worked just as well. IT is a @#$!#@$ to get the floor panels in and past the seat belt attach points, I didn't find any magic method, in fact they both buckeled on one side and I had to straighten them out after matchdrilling and prior to primer, Apparently others have had the sem problem according to the Matronics list. When it's all done they're in and straight.