The MB body shop did mine since they were also doing brush bars on new vehicles, they did have to get the computer from service. I paid the body shop guy on the side. If they go with the "not legal" story tell them you are going to install driving lights on your bumper bar or in the lower vents. You are probably not aware but there ia a connector in the loom behind the washer tank that has a connector that plugged into the harness that came with the MB bumper mounted bar.