Has anyone ever successfully installed one of the RNS-315 nav systems in the new 2012 Jetta SE? If so, I would love to hear some advice. My dealership has had my car for 48 hours now, and can't figure out how to correctly program the thing to work with my car. Everything I have read suggests this is mostly a plug-and-play device, minus the installation of the new antenna. Can anyone give me some advice?