Good morning! I picked up a 2013 A3 TDI with navigation and I am having two issues. First a picture to make it worth your while... The navigation seems to be very good with one issue, it is constantly 600-1000 feet off from my actual location. 1) Does anyone know where the location of the GPS antenna is or how to fully reset the system to see if it fixes it? 2) Is it possible to eject the navigation DVD or has the dealer or Audi disabled the eject button? Thanks for your time, here are some more pictures for stopping by. Interior picture my salesman took for me.