I have a few exterior plastic trim pieces for my 240 that I need to reattach: the left side strips which go along the bottom of the doors and fenders as well as the courtesy butt cheek covers. They currently have the old vhb adhesive stuck to the plastic and I'm trying to remove it in order to put fresh adhesive and reattach the trim pieces. Any advice on cleanly removing the old adhesive? Razor blade is too sharp and cuts into the plastic. I started to use goo gone, but I'm worried that the oil will soak into the plastic and prevent good adhesion with the new vhb.