Take your tint and heat shrink it. What u do is when u cut them out put them on the outside of the opposit window, with the backing still on. Spray your soapy solution(I like baby shampoo) and wet the shit out of your window. Then u squeegee it like u are tinting. When u get to the top where it won't stay down and bulges up take your heat gun and lightly heat the tintn then squeegee it. U don't want a lot of heat here as it will wrinkle your tint. When u get it where it stays down then u are ready to apply it. When heat shrinking u want the clear backing facing u. A hard card works good here. When u go to put the tint on and u have the little "fingers" that won't stay down use a little heat until the "finger" spirals up then squeegee it down. U can use this method for any contoured window to get a perfect fit. Btw I used to work at a tint shop
Might wanna tale some scraps to practice with so u can get the feel for it. The thing about tint is use a lot of solution to "float" the dirt out so u don't have anything in there
Hope this helps