tracdoc, the Prodigy is no doubt a good unit. It, however, doesn't work well with the Touareg unless you go through the grief of pulling apart the wiring harness and doing a custom wiring job. Apparenly it causes faults in the computer system of the Touareg.
The new Jordan units works with the adustable brake pedals, and doesn't seem to have any known issues with the Touareg. I think that is the way I will end up going.
What is somewhat shocking is the price of a hitch for the Touareg. I got a quote from one VW dealer at $1150 (without a controller). Another dealer quoted $710 + $392 labor (without a controller). Both are for the factory hitch, giving me a 7700# towing capacity with my Touareg.
I called a local hitch shop, he said he would not install one on a Touareg because labor costs to do it are too high, it is a 3 to 4 hour job.
I called the local U-Haul center, the grandson of the founder of U-Haul drives a Touareg, I was told all their big centers will install them. They quoted me a price of $450 installed, with a basic controller. They use a Curt Hitch, using that hitch I'd have a 6000# tow capacity. That is likely what I will end up with, as most of what I tow is 4000# to 5000#. I'll add the Jordan unit. U-Haul said they would install the Prodigy, I just am unsure if they will install it properly with the custom wiring.