From latest price list, 5/5/15

Car-Net ‘App-Connect’ 1 Combined functionality of Apple ‘CarPlay’, Google ‘Android Auto’
and ‘MirrorLink’ ™ allowing ‘mirroring’ of smartphone display on the
infotainment touch-screen via USB connection. Display and operation of
certified apps including audio and voice control (if supported by the app).
Usage of certified apps only while driving. Only available with compatible
smartphones including iPhone 5 and 6. Please see The Official Website for Volkswagen UK : Volkswagen UK
to check smartphone compatibility

Price £100 to you, almost a bargain.