i want to know too, my tint is cheap as hell and i would love to put some decent stuff on, only thing stopping me is the damn back glass being a pain in the ass to remove the tint
u can buy any ammonia based window cleaner at walmart. U can also buy tint window remover in bottle(basically storong Windex is all it is).
I used old credit card to scrape around defroster. Do not use razer blade for that, else u might mess up the line..
just an update. i was reading up a little and the only experince with rear defrosters i've had was with my old beater/dd geo storm. it had old ass purple tint and it was a pain in the ass to remove.
i guess my mustang has, i mean had, a metallic based tint. the back window peeled right off NO problem at all. a few spots were the glue was still there, but some windex and steel wool took care of it. i removed tint from every window tonight in about 1 1/2 hours.
that is through the back window
so, my advice is just peel the tint off from the top down, slowly(the slower you go the better, if it jerks a little bit, thats when glue gets left behind)