Hi y'all, I can really stand some help regarding troubleshooting my 2007 Mazda6 headlights, low beams are very dim and the bulbs have recently been replaced and no change, high beams appear to be much brighter. I think I need to replace all the headlight wiring and connectors and need...

A few days ago I was delivering with my 2016 Mazda 6 with 109k miles. It was parked on a slight hill while running when I got into it and put it into reverse. Then the screen when dark and I instantly started smelling an electrical burn. After I turned it off I could not start it without...