While trying to deliver pizza, I noticed my phone was no longer showing the map. The light on the charger wasn't on, and wiggling it around didn't help. Tried 2 more chargers and none lit up so I scrambled for the handbook to look up the correct fuse. Couldn't find the spares so I took the same size from the sunroof slot and swapped them out. Got in the car, turned the key, and was treated to sparks and smoke :-o and that "zzzzt" sound of electronic death. Okay, obviously I need a new 12V outlet. My concern is what caused that, and will it happen again when I put the new one in?