Putting in the Headliner was not as hard a job as I thought, but it did take 4 or 5 hours to do. First I installed the interior roof light and wiring. Then I sprayed the inside of the roof with 3M Trim Adhesive and glued the roof insulating material in. If you do not put this stuff in then it sounds like the inside of a drum when rain hits the roof. I heard a great tech tip the other day, but unfortunatly I had already installed the headliner. Put all the screws for items that mount onto the headliner, like visors, rear view mirror, seat belt clips and coat hangers, into there proper holes. After you get the headliner installed, just feel over the surface of the material and find the screw heads. Then make a small cut and remove the screw. I am having a hard time finding all these holes, and very nervous about cutting the headliner in the wrong place. After I draped the headliner over the support rods, I put a small heater in the car to warm the material up a little. This is important because it is very stiff and wrinkeled when you remove it from the box. I started by stretching the material front and back, then side to side. I held it with pieces of old windlace. After I had it mostly smouthed out I put on some 3M Supper Trim Adhesive and gave it a final stretch. The hardest part was the rear corners, where it took a long time to get it right. The rear quarter windows were installed next. I just had to clean and lube them up. These where hardly worn and are easy to install. After I repainted the inside quarter panels, I glued some insulating material on the backside, and installed them. I orderd a new rear seat divider panel and installed the rear seats.