Smartidiot wrote:looks like i will HAVE to go with ceramic since the metalic film will interfere the nav system...
No, you really don't. You have two more more options available: you can go with a regular old-school film or upgrade to a high-performance non-metallic if you like the dark look or can't afford ceramic. I am also not quite convinced that you need ceramic film in GTA as much as you would in the south. A couple of things to consider and keep in mind:
1. Do NOT use ammonia-based sprays (Windex, etc) - water only!2. Go with a hi-po film if you park outdoors/in the sun a lot.3. Choose a reputable shop that is likely to be around in a few years should something go wrong (lifetime warranty won't help you if they are no longer in biz).
Good luck and post some pix when done! BTW, you never mentioned what kind of car you are driving or looking to buy.