Just bought an e30 with the 13 button obc removed and it wont start, managed to frig it to get home, I know its the obc wiring stopping it from starting but the problem is its a pre-facelift which doesnt have the two green wires behind the glovebox, its on a white plug under the steering column with three wires on it, whats the best way to get it to work as it also controls the tacho and eco meter?
cheers

