Re: Tow vehicles????
Whatever TV you have, I suggest reading the owners manual to see what the TV mfgr. says is required for towing.
With my Odyssey, Honda says a tranny cooler and power steering cooler are required. I wouldn't want to tow without them.
Also, I believe that a WDH adds a safety margin to the tow set-up. You may never really need it, but who knows. The cost is fairly inexpensive when considering how much we spend for our TT's. Plus it is one more thing that keeps everything hooked together.
My suggestion is that if someone says you need it, [Brake Controller, WDH, Sway Bar] go for it. You will only pay once.