Basically you will be told do not get a Metallic based tint. As the metallic based tint can reduce (to nil) the AM reception, though my local dealer of tint-a-car said nothing about FM.
Metallic based tints are better at UV protection (99.99%)
Non metallic tints are about 60% effective at blocking out UV protection.
Also metallic based tints reflect more general heat and look better than the non metallic tints.
Falcon Killer (if you believe what Ford Service Departments have to say about me)
AU II XR6 - October 2001 ~ December 2002 - RIP
BA XR6 - December 2002 ~ Soon to disappear if Ford CRC can't fix it....
45,000km service coming up - and i'll be asking for a sizable list of fixes:
* Gearbox (3rd time)
* Steering click (5th time)
* Brake Shudder (2nd time, and has the applied "Fix")