I have a 2001 monte Carlo which by the way does not have the factor stero anymore. The person I bought it from replaced. Afew days ago my brother changed the radiator for me and disconnected the
Battery and left it disconnected for 3
days. After putting everything back
together the car won't start and
lights are flashing and a bunch of
lights on the dashboard are on. I
think it has something to do with the
security system. Please Help!