Well I got my new boat yesterday. Explorer pulls it like a pro. Only problem is my towing package came with a 4 prong plug. My boat has 5 prongs. The one extra is for the surge brakes on the trailer. I do have a little tool that goes in a slot to prevent the brakes from locking up. Here is my question. Is there not a adapterr that takes the 5 prong down to a 4? The guys at the dealership says there isn't. Is this true? I find it hard to believe, but with my luck I will believe anything. I sure hate to have to get the thing re-wired.