UDF, there are a couple of companies that make a wiring harness for jeep, CoolTech is the only one I have experience with and I know there's works good, had one. With respect to the key, the steering column has to be unlocked while towing to allow the toad to turn with the MH, otherwise when you turn the toad will still be trying to go straight and you would be dragging the front wheels sideways.
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