Probably only relevant to anyone who has done this. Those clever chaps over at audi4ever.at have worked out a fix for the ZF short to earth issue that doesn't require re-wiring the antenna system in the tailgate. Link The two HF feeds from the antenna system connect to a golf/passat diversity converter and then onto the RNSe as a HF/ZF connection. The chap has posted a schematic for the connector cables too if you want to have them made up by an Austrian company called Krenn. I've costed some of the parts from a VW dealer - Golf/Passat diversity adaptor 1T0035530 - £108.61 Power connector for the above 1C0 973 119 - £1.49 This is a picture of the diversity adaptor mounted on its carried plate I've asked vagparts for a price on the adaptor, if's it's significantly cheaper than VW I'll buy one and see how I get on with it. I'll post back any results if I actually get around to it. If anyone can translate the page better than bablefish feel free to to do so. From what I can make out, the ZF issue is fixed and the reception is much better too.