The first seat-cover wires to install are the ones that attach to the main wire in the seat base. They are also the same ones to get reattached. First, set the seat foams in place. Ours had turned to dust and the Pontiac foams didn't match the Chevelle seat pattern, so we got new foams from OPG. Next, hog-ring the seat cover to the main wire-you'll be going through the cover, the foam, and the burlap, so make sure the hog rings get firmly hooked to the main wire. This is an important step because it sets the main pleat in the seat; keep tautness in mind as you start ringing to the second main wire.