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Yes It is their is a box that you need to buy and wire it in... If I can find a link i will link you too it not sure of the cost.. I am thinking that your have a 2005 with your name
for 2003-2005 http://www.doghousediesel.com/catalog/i202.html
2006-2009 http://www.doghousediesel.com/catalog/i201.html
those leave your low beam and fog lights on while your high beams are on..
that is the best buy....
there is another set that is like 40 bucks cheaper leaves your fogs on only with your high beams.. but not as good as those that i have linked..