all three of my micra's have rear speaker wires fitted by previous owners, none seem to have the rear plug u have. your car is a 98?? which we didnt get here, the looms are different from lx & sup.s & slx and from year to year. Yours is a left hand drive euro model which may have its own trim options. Are u sure they are speaker wires, if your car isnt a high spec micra it may not have the rear wires. Haynes wiring guide is based on 96 models with six speaker system, mine only had two in doors