I'm looking to buy a Pro-4x and I found a great one...but it doesn't have the roof rack. I have never seen an Xterra without one and I certainly want to add one if I choose to buy this one. It is a 2013 and before I buy it I am trying to figure out how difficult it is (or how expensive it is) to add one on. I think I can easily find the roof rack to purchase, I am more concerned about having to remove the headliner and how much disassembly has to be done if there is no roof rack in the first place. I have no idea how one is added on aftermarket and how that works, so if anyone has any thoughts or feedback for me I would appreciate it. (I don't want a "how-to" because I plan on paying a shop to do the work - I just need to know if it is going to cost me an arm and a leg to do it) Everything else about this Xterra is exactly what I want, I just need to know how much of a problem I am going to be jumping into by having to do an aftermarket roof rack. Thanks guys!!!! (and if anyone has one to sell - let me know!)