I agree, KBB is my favorite by far.
Select "New Car Pricing", then "Trucks", then Dodge... etc.
When you get to the appropriate style/trim page, I like to select the "Printable All Options Report" (left side, along the bottom). It lists all the ordering options/codes, along with their invoice & retail prices. Really nice to know exactly how much each option will add, without having to re-calculate every time.