Bum Bum Bum

you all know what's comming
THE AEROSTAR IS BROKEN
but not mine....... My grandpa's
ok here is the issue.

My grandma was driving home, and she said the spedometer went nuts. then whan turning corners the turn signal didn't work. then somehow she managed to get to the driveway before it died. Now It refuses to start. when you turn the key all the lights and what not go off. But all you hear from the engine is clicking.......

what in the hell is wrong now?