On the 2105+ they made the whole system go to sleep mode, pretty much everything goes dead to the world, except the horn I think. but if you open the drivers door the (most buss) radio/cluster comes to life and the fuel pump primes. just from opening the drivers door. funny I can open the door and the radio starts playing..... same if I shut it off and lock it the radio might still be playing for a bit..... and it hijacks your phone bluetooth, if you get a phone call and the system is awake it takes over like you were driving, annoying sometimes.I generally do, with the exception of bulbs for the most part. When I reconnected the visor I had the mirror flap closed but you're right, it's still a live circuit at the pigtail.
