Wanted to post this for those that wanted to DIY your RT-622 Trailers. I was only able to find the written instruction online but no video. And with those I attempted and completed the installation. I've posted three parts to the installation on youtube but here is the link to the final test before reattaching the rear bumper. Note: The first two part of the installation I failed to switch the volume on during my recording but I have inserted text explaining what I was doing. Good luck to the others that wanted to do the DIY.