@Mad Ax I have done some programming this week and think I got a working setup with light and even a buzzer for reversing light.
I am new to Arduino so my code is probaly very simple and slow.
I notices that after adding reverse light the all project is getting slow.
If you have time I can send you my code and you can look at it and maybe find some adjustments that can be made for speedign the code up
But It would be interesting to see you code and see if I can contribute or use some funtions in my code