I have a 2016 Hyundai Santa Fe turbo gas engine, one Mobius in the front windshield and one in the rear hatch window, plugged into front and rear cig lighter power ports using Mobius cig lighter adapters, push button start, fat32 config. The cig lighter ports are always dead until ignition, then become hot. I'll try to pay attention to my car start procedure going forward and see if I'm possibly hitting the start button too fast or not long enough. I'll also pay attention if the cig lighter port becomes hot when I push the brake in to start, or when I actually press the start button. Battery is not an option in Florida because of the heat. I've had them swell up in this temperature. Thanks for the info here...sounds like I'm not the only one to experience the problem.