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External power to control power state of Surface Pro?

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Windows Central Question

External power to control power state of Surface Pro

I am trying to use the surface in my car, I have the 12v adapter but I can't seem to get a power setting that works properly. Basically what I want is for the Surface to power on when the car power is switched on (power to the adapter is controlled by the ignition) and turn off when the power is off. Any settings or assistance would help thanks!!!