Hi. I bought the Curt 56170 custom wiring connector to wire my 2015 Honda Pilot. Watched the video and it seemed easy enough install. The problem is that for some reason my Honda Pilot doesn’t appear to have the pre wiring. It had the connector for the Aux fuse but the gray square connector that is suppose to be behind the tailpipe isn’t there. Any suggestions as to what I’m missing or why it wouldn’t be there?