Flickering or pulstating Headlights

I think I've narrowed it down to the bulkhead connector. I'm going to clean things up as best I can and put some dielectric grease in there see if it makes a difference. Everything under the hood checked out OK but both sides of the ballast resistor gave around 10.8V instead of 12.3-ish like everywhere else. I have a wideband O2 sensor BTW which turns on with the key and I can see the voltage across the battery drop as the sensor heats up, I finally figured out lol.

The ballast resistor doesn't really have any current going through it anymore with the way I've done the wiring btw, I could have taken it out but got lazy