Hello, I am trying to make this modification, I have the 2018+ headlights at home but I have the same problem with the turn signals, I can't get them to work well, with your harness they work well? Could you provide me with the wiring diagram to make this update? It would be very helpful. Thank you very much from Spain.I sent you a message about getting a prewired harness made if you were still open to doing that. Thanks!