from what i have read it is a plug and chug operation. however the rns 315 does not have all the same functionality. they deleted the HD radio capability from the RCD-510 and it does not have the on board hardrive and dvd playback function that hte RNS-510 has. not to mention a retardedly smaller screen. its a slap in the face to anyone who pays this high a price tag for a car, especially a volkswagen. the Passat SEL Premium comes with the RNS and costs WAAAAAAAY less than this car. Fing retarded in my book. VW just needs to do away with the 315.




