I will post a picture of my install in about a week to show everyone my mod. I did purchase a kit, but Holiday World did not tell me that a round kit was available. Should have done this research first! I am taking two great ideas I found to correct this problem. One from this forum from Austin was to cut a square piece to cover up the round hole and mount my "square" plug onto the square piece. One idea from another web site was where to locate the square piece. Go to a sign store and let them cut the small piece of aluminium, rounding the edges. I did that today. I am getting a white piece to match the white plug. They are drilling the screw holes. I will cut the round hole for the cable and screw holes for the new plug. Should work great!