the dimmer switch connector? Youre talking about the switch that switches between highs and lows? And you just replaced the connector not the actual switch? Is there any power coming out of the switch? Those switches go bad. Any power at the headlights? If power is getting to the headlights then they arent grounded.
when my headlinghts on my 80 caddy coupe gave out I traced the problem to the wiring near the radiator support in the wire loom. The fusible link for the headlights had shorted out and I replaced and spliced in a in-line fuse and PRESTO!