360 camera module question about inputs

[LBC_Jeff]

I have a 2020 3500 and I’m looking to add the 360 surround view. Here’s the camera module I picked up. I assume front back, left, right are for the tailgate handle, grille and mirror cameras. One of the other two should be for the cargo brake light. Is it the orange or pink? And what is the last one for?

Thanks!!!
Jeff