K12 2006 micra Blaupunkt 6cd radio

[ade12000]

Hi, I have a k12 2006 micra, it has a blaupunkt 6d changer, I have taken it out to change it to an aftermarket Sony stereo for Bluetooth, however, I can't find a cable that connects them. I went to halfords and none of their 3 different leads fit for an aftermarket stereo, does anyone know what cable I need? I'm not really fussed about the steering control. I attached a picture. Thanks