i went with some heavy tint and it helped some, but realistically it doesnt cut it in a car. best thing to do is plan your trips early in the AM or after sunset to cope with the heat. pulsing the air does seem to work in my car but its annoying. i usually run the air until the cabin cools down, then switch to recirculate with the air off. recirculating the cabin air will keep the cool in a little longer than bringin in fresh 90 degree air.
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