2006 Chevrolet Silverado Silverado 1500 headlights won't come on

I replaced my low beam head light on the drivers side and now none of my headlights work. The passenger side was working before the replacement and now nothing. I can hear the relay clicking over, have 12 volts at the fuse, and have a good ground on the connector. Unfortunately I can not find any schematics to trace back the power flow.