USB Hub with Motion Sensor Light [1st Gen Center Consoles] for Model 3/YUpdated 2 years ago
The video below is of almost no help, but great production values :-).
Installation is very easy, the trickiest bit is lining up both USB plugs. But make sure the car is at a comfortable temperature, take your time, and with a bit of wiggling you'll find the right location and it'll slide right in.