I want to install a through-the-glass antenna and need to know what the tint is made of, like is it metal tint, colored glass, etc. I looked on the rear hatch window and didn't see any info and I called the dealer parts dept and they didn't know either. I assume all tinted factory glass is the same and is why I posted here. If not, someone say so and I'll post in my car area. Not posting the car here as last time I mentioned it once and got the thread moved.