I'm fitting a Mk1 RNS-e unit into an 06 A3. Currently got a symphony II unit in there. I've searched on here every term i can think of, but with every thread it seems to be outdated and the links don't work. SO Do i need an Adapter to connect the unit to my current wiring? I've read conflicting forum posts etc, one definitive answer would sort me out. Plus is there anyone near Guildford that would code it for me, obviously i'd pay!