Remote connection and focbox unity

Hi there! I just got a wonderfull little orange focbox unity to take the place of my old esc. I’m blocking at a basic point and it feels really stupid :this is my old controllers 7 wires connectic, and the small 3 wires cable is what enertion is giving me (

see the picture). I’m not afraid of cutting and welding, but i have no clue what i am suposed to do. Can i do it someway, or should i buy a new controller with a more classic looking receiver ? Thnaks :slight_smile: