Cutting diff lock speed cable

[Onky84]

I read a post from 2010 regarding cutting the blue/orange speed sensor cable and also bridging the yellow/black to black cable to be able to use factory diff lock in 4h and 2wd with no chime over certain speed. - on a zd30

Went to do this on mine and I don’t have those colour wires - on my 98 gu 4.5 ti auto

Anyone done this and can point out which is the appropriate wires ?

Have a photo but can’t post atm