As itznin said, this is unconfirmed but, the guy @ Monster Coatings that applied my clear-protective covering made some comments abot Huper-Optik that made us pause a bit.
Something about the fact that the 'ceramic' part of the tint isn't really in the tint at all. He claimed that Huper is still a metallic tint but when its pressed out, they use ceramic rollers. Basically meaning that ceramics are used in the production process, but not in the final product. I'm not sure if this means that it will still have an effect on radio reception or not, this is just what we heard.
If anyone has any other insight as to what this could or could not mean, please feel free. In the meantime, we have decided that Solar-Gard may be the better alternative for a group-buy because of pricing mostly.