Found an archived post that pointed me in the right direction and I have just experimented with an appliance with power LED indicator. The Cupholder, centre console and cargo area 12v outlets all switch off automatically 3 minutes after you lock the car. Even touching a door handle restarts the 3 minutes... You do not need to unlock it...Did not test the rear underfloor outlet but I was concerned about semi permanent connection of a Waeco fridge in the rear floor area. Should be fine for 3 minutes. My car is build December 2010.