My mother in laws 2010 Mazda CX-7 has EXTRAORDINARILY dim high and low beams. They are properly aimed but are dim. This model is particularly infamous for this issue. I had new standard halogen bulbs installed. Same dim coverage. I am talking dangerously dim. You have to drive with the HIGHS on to be safe. They are dim and brown.PLEASE DO NOT SUGGEST SILVERSTARS OR SUCH. Those have been tried by others and they are dim as well which leads many to believe it to be a system issue. One owner in a Mazda forum had a theory/question that was never answered. His theory was that a bad ground in the headlight circuit could cause this issue. Anyone more knowledgeable than I know if that theory could be the cause of this issue?