I have a 2007 Pontiac G6 and the low beam headlights keep going out. I replaced the whole headlight assembly 2 yrs ago so that is new. The driver and passenger low beams have stopped working every 3-4 months and I've had to change bulbs and replace connectors. I purchased new bulb and headlight connectors, and checked them on the battery to see they are working before I connect to the main wiring harness. Once I attach them to the wiring harness with connectors, cinched and waterproof connectors, no movement in the wires at all, and attach the bulb it doesn't work. The parking and high beams work fine. I've checked all fuses and even replaced the Micro Relay. I've changed the Combo Switch (turn signal/headlight switch) on the steering column also and we still do not have working low beams. Any thoughts ??