Cableguy these images are amazing. I have a question on the trailer wiring diagram for the flat four pin diagram. Maybe you can clarify, I don't have the best vision but I am looking at the part where you have to have three red marker lights on the back of the trailer if it is greater than "x" inches wide. What is that value? It looks like 60" or 5 ft but I can;t tell for sure. What state is that the law in? I am building a trailer for use in colorado and I am wondering if I need those. Its not a big deal, so maybe I should put them on there anyway just to be safe. Thanks for the help!