I recently installed the city lights in my euro headlights and installed them to run only when the engine is running. The key is that they only run when the egnine is running and not when solely in the run key position. I notice everyone wires theirs in with the parking lights which is not how they come from Europe. If there is any interest in the way mine are wired I can post up some detailed pictures as to how mine are wired. By the way I am selling her for anybody interested.