Since he specifically referred to me, he might be noting the fact that the harnesses I built did not have a mic input At that time I saw no need for it - the VR stuff didn't look like happening. I did supply the spare pins though so if someone wanted it, they could add it reasonably easy.

Simply get a 3.5mm socket on a cable (something like a 3.5mm socket-plug extension cut in half)and crimp it on to the two pins. The crimps can be done with small pliers quite easily if you're only doing a couple.

Either way there was no cutting involved.