You've definitely got a tough decision ahead of you! I personally LOVE the sunroof and navigation on our 'NOX. I'm an electronics gadget person, so the navigation, to me, is AWESOME! It's not just the navigation aspect of the unit, but the beautiful display and added controls that make it so great. With that said, the memory seats and power liftgate would be hard to live without after having used both numerous times so far. To me, losing the rear park assist is not that big of a deal because you would get the larger rear view display in the navigation unit. Good luck in your decision and I'll try and look up your two addresses tonight on our navigation unit, and I'll let you know what I find out.