I've only had my Model 3 for a month, so bear with me here. Situation: My wife is in the backseat with newborn and I need to go inside a store. How do I keep the music on when I leave the car? I know "Dog Mode" for AC, but I can't figure out how to keep the music on too. For other M3 owners, how do you keep the AC and music on when going to far from the car?