Oh well, it was a nice try. Turns out i've got gamma iv and bought a gamma v (which i want). But connectors on the gamma iv are different. Gamma iv uses same bottom two ISO connectors (brown and black) and has a single top connector (red) with 10 vertical pins. Gamma V has 3 top connectors (8, 6 and 6 pins). Does anyone know if there is a converter block available or is it going to be a chop the cables and wire in new connectors (fine on my 35 yr old landrover but reluctant on a 98 Passat).
Cheers.