For all the 2010-2011 Mustang V-6 owners out there, there is a solution. I too was tired of manually turning headlight switch on each time it got dark. I called Ford dealership and asked is "auto heeadlight switch" could be added to stock V-6 model. The guy replied, " I really don't know." Well I took the chance and purchased the $35 auto headlight switch for 2010 Mustang GT and took it home.
What's the Ford part number for this "auto headlight switch"?