Quote: Originally Posted by Bugbyte
If the spoiler is fiberglass or plastic, it shouldn't cause a problem. Some types of window tints can block the signal, but that's pretty easy to test. Just try it with the windows up and then down.
Metallic tints block signal. The cheap ones are usually metallic. Ceramic window tints will let the signals through. Lots of people on the GS forum were having weird problems after getting their rear windows tinted, like they were driving over water
