We have recently purchased a 2016 Metris with the Becker Audio 15 Map Pilot. We thought it had Nav but is say "No Module" when we try Nav. I contacted the Dealer and they want $825 for the module! Any thoughts or info on this would be greatly appreciated. We really like the machine so far and our sticker was $41,310 so it has 95% of the options available and all that we wanted.