I went to start my jeep yesterday morning and my remote unlock wasn't working, used the key to open the door like a primitive savage and no dome light or any sort of electrical going on in the car. Disconnected the battery and reconnected it and it started but idles rough. The battery is only a year old, and I just replaced the 02 sensors and the spark plugs which cleared up some previous error codes, but now I'm getting random multiple cylinder misfires and this problem with the electrical going completely dead. Today it started up fine but on my way home from work my dashboard lit up and my radio cut out, shortly before the electrical shut off on me in the middle of the road, and with no electrical I couldn't turn my hazards on. Any ideas what's causing this?