Check out this feature on the Model X You click on the T at the top of the screen which opens a window. You slide down from the top which opens the icons. Click on the Christmas ball icon and follow the directions. Make sure your windows and doors are all closed and you are at least 15 feet from any object. step away from the vehicle and click on the lock button on your key fob. It's really cool the doors and windows open and close to the musicMy 10 year old son is a massive Tesla fan and was instrumental in us buying the car. He keeps saying he's so happy we got our Model 3, has a Tesla shirt he wears every day (and sleeps in- it gets a lot of washing!), and has taught me stuff about the car.
He got this idea having seen a Model X Easter egg video.
He did this all himself, directed me in what to do in a supporting role.
Sharing here as he's super excited by it!