I figured it out today. You have to slightly bend the cone shaped end and feed it through the tail lamp bracket. Then squeeze the cone at 90 degrees and round it back out. The cone will lock in behind the tail lamp when you tighten the tail lamp to the bracket. The sliding sleeve will need an "o" ring and 3M emblem adhesive. Slide the sleeve over the cone with the "o" ring inserted in the sleeve. Line the sleeve with emblem adhesive and it is installed! Deve, I got these on E-Bay. They come in 12" and 19" lengths. Get the 19" length. The 12"'s are too short.
