back tint for 08 sedan in Chicago, IL, USA

[pandus13]

Hi guys and girls,

Summer is here (maybe) and i need to protect my 2precious from it.
i'll need some tint on back (driver and passenger side) windows and back-windshield.

i'm located in Chicago area, USA.

i'll take any suggestions regarding percent used and shop to do it.
i don't mind giving my business to somebody on this forum.

i'll need to keep it legal, as I've driven this car about 6 times in 5 years so need wife happy. so i'm looking for functional, not cosmetic.

thank you and happy motoring.