just a quick update:-
i have found a universal fakra extension cable that fits between the mustard colour connector on the back of the cic and to the mustard colour connector on the new diversity aerial.
funny enough i had to order it from audi! the part number is 000098656 (5m) or 0000098657 (6m).
in different countries the grenn coloured connectors are used for the dab, but this universal cable will fit either.