Here is a device that you could sell in the millions right in Walmart and the other box stores.  In those stores, you already have radio/music players.  One of the most popular upgrades for any car is the car stereo.   Yet we have millions of cars running around with a unit in their dash that is archaic and let’s down the car owner daily.   The standard old unit that controls their heater/air conditioner.  Knobs and levers that need consistent adjustment, and leave the driver in a state of extremes.

The solution is an LED displayed, standard sized unit that has a slim thermometer, display that looks great and keeps the temp a nice settable temperature.  At the rear of the unit, there would be several motors designed to take the control of the thermostat and apply it to the cables currently running to the rear of the controls now in your car.    Installation would be simply taking off the control you have, and installing the replacement. You would buy the unit, and just like with any radio you buy in one of the box stores these days, you pick up the adapter kit for your model of car.  DIY or have it done for you, just like with a radio, and it’s easily as important of an upgrade as getting a new stereo.