Ambient light is a bit challenged up here in the northwest for the next six months or so. I lovingly call this place "the land of perpetual darkness" this time of year. Q: Anyone ever utilized one of those DRL retrofit kits from GM or other source? Opinions on value/functionality? I've read most of the available web content and think the statistical value is evident but economically is questionable. Around here anyway I think having the lights on makes vehicles much more visible in the shadows and dark days.