did you reset the 510 after making the changes in VCDS?
The guys at the specialist did it and not sure if they reset. I will do that though. Just the two arrows and star button?
Yes that's all it should need, you always need to reset 510 after any changes in VCDS to take affect
there will be NO wiring issues at all, its all software driven , awesome are probably used to after market stereos where you have extra wiring to know if the cars in reverse