Plan on tinting my 2010 Prius after market. Does anyone know about Suntek window tint good or bad I read on the website they used metal in the tint? Is this bad? How well does metal hold up over time or cause cell phone/radio disruption? I put 3M on my last car and it has held up well. But I'd like to tint the windows darker to the legal 25% visibility (Oklahoma) but the dealer will only go to 35%. The second dealer will tint to 20% with Suntek but I'm unsure about this brand. I don't mind 35% on the front b/c I will be moving out of OK to a 35% state. Read on some other threads that said if your front windows are lighter you may be allowed to keep dark windows in the back even if they are illegal in another state.