There is lots of stuff available. Mine was made, got it from someone, believe it started as a camper/RV unit. I've seen ones that use a hose through a parially left open window. Think I even saw one that uses a cooler, but I don't know if it worked to cool a car.
there has to be a way a remote starter can start the car if the temperature gets too hot. when the car starts you have the cars ac cool the vehicle down. you would have to leave the ac on when you shut the car down but in the heat you would leave in on anyway.
a thermostat could tell the remote starter to start the car.
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