There was a TSB released yesterday for vehicles with a dead battery and a JBL audio system. If you occasionally here a pop when turning on and off the car, and you experience a consistently dead battery, it may be your Amp. See your dealer for details. TSB is AU001-05. Nate
I had an unexplained dead battery back in Jan 21/05. It hasn't occurred again. I'm not sure about the popping noise http://priuschat.com/forums/my-prius-died-...html?highlight=
found my battery dead today,cause of the problem was i had unlatched the cargo net and the clip was under the hatch when i closed it this leaves the red door ajar light on on the dash , since it was a week ago since i closed the hatch, the battery was stoned.