I Have A 1996 Buick Regal Custom 3100 engine --i Just Purchased A New Battery And Starter.the Car Started Fine Yesterday.got In It This Morning Turned The Key Every Thing Went Blank--seem Like The Switch Is Not Getting A Connection.i Had The Battery And Starter Rechecked....what Do I Look For Now?

Its hard to help not knowing the year and engine in your car.

sorry!!! its 1996 buick regal custom with 3100 engine

I Have A 1996 Buick Regal Custom 3100 engine --i Just Purchased A New Battery And Starter.the Car Started Fine Yesterday.got In It This Morning Turned The Key Every Thing Went Blank--seem Like The Switch Is Not Getting A Connection.i Had The Battery And Starter Rechecked....what Do I Look For Now?

You might have a bad connection in your neutral safety switch. Be sure your foot is on the brake. Some cars won't start if not. Also, try starting it in neutral instead of park. If this still doesn't work, you might need a fusible link to the starter.