OK I am going to do my best to try to describe what happened today. I was on highway with the a/c blowing and the spedometer died and the airbag light went on and the spedometer went back up again and then died. The car drove fine until I got into the driveway and then I lost all power, it was really weird I was lucky enough to have power to get the windows rolled up before the car died completly. Anyone have an idea? Is it a battery, an alternator or something else? Thanks for any help!

Pete