Having read endless threads I think I have determined what I need for my 2012 Octy. I am fully aware of the legal implictions and don't wish to generate a thread full of bickering. So....
I believe I need a non-canbus system which I then code in. (To avoid introducing a large resistance into the system and screwing up the wiper motor etc and fitting a direct ground wire as a get around the problems it causes)
Coding involves activating Bi xenons with shutters?
Finally Connecting it. Does the