Nikon/Hair adjustments?

My hair is light-brown and dark-brown. I guess you could say that I have natural highlights or whatever, so whenever I take a picture with my Nikon D3000, set on Auto, one side of my hair would be mostly light brown and the other side would be mostly dark-brown, which looks unbalanced and just plain weird lol. How can I set it or adjust my camera so that my hair color is equal/balanced?
(I'm just beginning to practice photography)

Auto anything on a dSLR is only a compromise.

At least set the white balance to match the lighting you are using.

Those of us who earn our living as photographers do this to assure accurate colour matching

http://www.xritephoto.com/ph_learning.aspx?action=webinarsarchive&eventid=803&eventdateid=4460