I am going to get my side and rear windows tinted, but I wanted to make sure that the metal "chips" inside the tint wouldn't affect GPS, bluetooth, or general cellphone reception. Is that correct? My local tint dealer uses sunguard or 3M.
http://www.mp3car.com/vbulletin/showthread.php?t=29689 Mine is FormulaOne Pinnacle 30, which did no harm to my GPS reception... http://www.formulaone.com/pinnacle.htm
In the Prius, I believe the antenna is in the front. However, satellites behind you need to come in through the other glass, so the less in their way, the better...