I am thinking of retro fitting ACC to my 2013 Sport HSE Black Edition, does anyone know the parts that are needed,

I know there will be the front sensor and the controls for the steering wheel (can you get these separately or is it best to get a new wheel?)

Is there another ECU needed or will the sensor just connect into the existing and once enabled with the IID work? 2016 Black SDV8 Autobiography
2013 Grey Black Edition SDV6 (lasted a while but gone now)
2005 Grey Supercharged Sport (gone but never forgotten)