Hi, thanks for the reply.
Yes, you are right, how do I know if Android Auto / Carplay is enabled on my car? I know it has never connected via USB cable (data cable) so that is why I gambled on wireless adaptor.
From the research I did, a 2016 Golf GTD shoud be fitted with Auto / Carplay, I can only guess mine wasn't! Is there a way to enable it?
Many thanks to all replies and any more which may help will be greatly appreciated.