ive given you the details to solder in the wire that you already have, if you solder it in and it works then you will need to get a new obd socket. but for now just follow the instuctions and solder the 9pin serial connector wire into the wires at the back of the obd socket
you are in a better position than i was as you have the colours of the wires in the correct pin holes, just leave a bit of cable on the obd plug and follow the wires through!