The GT-R start button should not take you longer then 10 minutes to do. Pop up the cover around the shifter. Remove the one screw for each knee pad, and remove them. Then remove the 2 screws on the bottom of the center dash cover. One in each corner. Pop the cover from the bottom first. You will have about 4 to 5 inches of room to work with. Pop the plug on the back of the start pop. Push out to remove it. Push in the new one. Install the center dash pad from the top first. Just push it in. Then reinstall everything else.