Do you think this is a good upgrade from RCD 510? or save more money and get the RNS 510? Also, doboth NMS and B6 have the same connectors?
http://www.eonon.com/Car-GPS/Specific-Car-GPS/VW/GM5153.html
http://www.eonon.com/Car-GPS/Specific-Car-GPS/VW/GM5153.html