I am just trying to finish off a trailer project for my 2012 RT S and have a question. I have received the Big Bike wire harness for the RT and I would like to install a flat 4 receptacle, but there are five wires on the end. :banghead: The wire colors are red,green, brown, blue and orange. How do you wire up a flat 4 plug and which wires get doubled up? The wires on the trailer are green, yellow, brown(2) and white.