I am a little slow are you asying move the pins on the Euro's? Or are you saying rearrange the pin configure on the USA plug ? Or are you saying that It will be a combination? I have looked over my Euros and cannot find what some call city light's did they come on just certain Euro's? I have seen Euro city lights on this site and on the street and thought how cool they look glowing but never really knew to much about them! Any help would be great. And thank you very much Larry Bible. I have read other posts that you "tee" into the economy gauge but sadly my 1972 350SL did not come equipped with one. I will scour e-bay for the switch that goes on the dash for vac adjustment I just cannot think of any other vac switch that I could get that would work.