How do I install the Quick Connect Capture Plate to the King Pin Box of my 5th wheel? Learned the hard way I have to have it. It hauled beautifully without, until I took a corner and then as I accelerated, I have a new shape to my tailgate. I actually thought it was my emergency cable that caught. Now it's sitting at home and I'm afraid to pull it anywhere to have it installed. All I have is the plate with no hardware.