No electrical power to any system.

The truck is a 4.0 l. w auto transmission. I tried to start the truck within a minute of
coming home and turning it off.  The engine would not turn over and nothing else that
required electricity worked either; lights, horn, gauges nothing.  The battery is fully
charged.  The positive battery cable to the starter relay looks good and there are no
obvious burned wires.  The fusible links at the starter relay appear good