Okay, so this morning I had to go to the dealer to pick up a customers part that was not sent out to me. While I was there, I was talking to the parts guy about the sub-harness and he mentioned that one came in a couple of days ago on a stock order. I asked him to bring it out so I could inspect it and snap a few pics with my iphone. Unfortunately, I wasn't allowed to remove it from the bag. Basically it's exactly the same as the schematic that I posted up a while back. One end plugs directly into the T4R tail lamp wiring and the other end plugs into the '14 tail lamp via a small 3 pin female connector and 2 light bulb sockets. I didn't ask what kind of light bulbs this thing uses but I am pretty suer that the existing '10-'13 bulbs can be used.