Hi and well done for doing the upgrade. I have all the parts to do mine and wiring loom made up. Hopefully get time in the next two week.Does anyone know what the ms-can connections are for? I have just fitted sync 3 in place of sync 1 (54 pin connector reaches fine if you untape the loom), I haven't changed the steering wheel pins yet from the fcdim socket, but it all seems to work ok - navigation, dab, Bluetooth, reverse sensors with graphics. I don't know where the GPS module is, would be good if I can get away without running the wires there
Andspenka and Balder's gave me loads of info and I believe the connection for the GPS is done behind the clocks. I have a message on it somewhere but from memory you lower the steering wheel down, remove the rubber that sits on top of the steering wheel which gives access to the torx screws to remove the clocks. Gps module is behind there somewhere.