Headlight wiring is for sure something that should be upgraded. This strategy of older cars that were manufactured with the grounding they used was stupid then and worse now. Mopar is not alone. Improve the wiring size, add headlight relays, and separate headlight grounds, and use star washers and bolts and nuts instead of sheet metal screws Even the old headlight connectors (if they have not been upgraded are suspect.
"Digi" do you mean LEDs? Those are a problem all on their own, "generally speaking."