my 96 olds ciera has

an electrical problem. I cant get any power, it just died out on me but the fuses and battery are doing good. I guess its a relay, what can I do to diagnose the problem?
please help me, thanks in advance.

Welcome to AF, what died? does the engine turn over but not start?, do the lites and horn work? None of any relevant info has been provided. Cables clean and tight?