Francis K

What do you think? I can lock my differentials by putting my 4 wheel in low but I don't have the switch that locks them without doing that. Should i head to my dealer and have it installed, I hear that it's pre-wired. I live in Michigan and though the part I live in has virtually no off-road land, which is what my car is for basically, but we do have some funky weather and I was recently in an accident during a snow storm, which are almost frequent, is it worth it? All opinions appreciated, thanks