Only starting a new thread as I can't seem to find a definitive answer. Is there a way to have the cigarette plug power turn off when the key is removed from the ignition? I have a BT adapter and I would like it to power down when I remove the key and exit the vehicle. Currently it stays on and when I (and my phone) travel beyond Bluetooth range and lose connection with the adapter I have to sometimes unplug and replug the adapter to get it to recognize my phone again. Also, I believe that leaving the adapter powered on is not great for the battery.