The wiring diagram with my Acewell 3250 shows a 9-pin connector of which 8 are used including a purple wire which I don't have!

My actual unit has a 4-pin (blue, black, red and brown), a 2-pin (white & grey), another 2-pin (black & green) and a single yellow.

Does anyone have the correct diagram for my set-up above or know what the wires go where?

you have u2u

Thanks, thats the one.