My '03 Accord's (probably all Accords) windows have no tinting at all. There's lots of sun where I'm in. A colleague had tinting applied to the rear windows professionally. I think a film is applied to the inside. The quality seems pretty good. I've also seen on the road many such treated windows with air bubbles all over. I assume these people did the job themselves. What's folks experience with this? Does having this done void any warranty on the car, such as the rear window-defrost? Would this cause the rear windshield to overhead when the defrost is turned on? RM