Reverse light wire colour 2018

[Trender]

Hi folks can anyone help,
I've just run into a problem fitting a rear camera on a 2018 connect as in finding a wire to the reverse lights to join into. I've taken the rear offside light cluster off to find all the wires to all the bulbs are black so no help there. The thick loom inside the van at the rear is coloured but not sure which colour wire to go for for a reverse camera power supply... anyone know ?
Thanks for any help

[Trender]

If anyone needs to know this in the future the drivers side reverse light wire is blue and white at one of the many multiplug in the back of the van, after the plug all wires to rear lights are black.