lfhoward wrote:Thank you, Jasen and everyone. I want to report I did what Jasen describes in the post above, using a plastic putty knife on a warm afternoon. It worked better than I expected. There was a small amount of sticky residue left on the roof paint, but that came off easily with a paper towel and alcohol. There is no trace anymore that the antenna was ever there.

I know it sounds a little unorthodox, but than again so does half the stuff that pours out of my brain case, but it does work well. Goof off or WD40 is good for getting the remaining residue off.
I used one of those eraser wheels to remove the 6" molding tape holding the stainless rocker panel kit on my truck, sure made it easy. Wish they had those wheels back when I was removing the decals from old police cars. We used heat guns, or the sun if we could, and safety razor blades we scrapped backwards on the polished concrete shop floor 3 or 4 times each side to dull them just a bit so they didn't cut into the paint easily.