I was driving for about 10 minutes and was getting ready to park in front of my house. I downshift to first and at the very instant I hit the paddle (purely coincidental timing I'm sure), all of my accessories shut off. Radio, Navigation, Air conditioning. Everything. It sounded as though the car had completely shut down. This lasted just long enough for me to utter "What. The. Fu-" and then it all came back on. I slowed to a stop, went to reverse, paralleled in front of the house, gave it about 30 seconds to repeat, which it didn't, and then shut it down. I've had no other occurrences since. The only common component that I can think of here is power supply. I don't have any of the other battery or alternator symptoms though. Anyone else?