Ya know, now that I think about it, the heat gun might actually just make the adhesive stickier. A heat gun does work great like I said for the stupid factory stripes. I think you're on the right track with a razor blade and some type of adhesive dissolver. I have used some labeled "adhesive dissolver" that did not work so hot. Brake cleaner seems like a good choice. Could it damage the window seals though?
![Wave :wave:](https://board.marlincrawler.com/Smileys/marlin/wave.gif)