Found some of the 3M "Adhesive Cleaner" at the local auto parts store. 3M doesn't make the Weatherstrip Adhesive Remover anymore, and it superceded to this stuff. I guess it was just too effective so they had to take it off the market. This stuff didn't do a whole lot to existing trunk weatherstripping because it can't really get down under the rubber and into the channel, so you still have to rip, peel and scrape your way down to the channel. Once you get the majority of the old weatherstripping out you can then spray this stuff on and let it soak in. I then used a wire wheel on a hand drill and the rest of the adhesive and weatherstripping residue came out.
