I've got a Prodigy also in my Armada towing a car trailer w/Jeep
MyRig
Your TT won't change much in weight so that you will not need to adjust the boost after you get things set up. You should have seen the cars around me at a stop light when i locked up my empty trailer

The Titan's harness connector is to the right of the sterring column (the armada is on the left btw) The factory connector is long plus the Prodigy connector is also long so you can basically mount the prodigy anywhere
except you can't mount it vertical, max is 70degrees. You will not use the illumination wire on the Titan harness. The dial on the top left of the Prodigy comes from the factory at full. You need to connect the trailer, move the lever manually all the way to the left and then adjust the dial so the display reads 6.0
The directions are simple once you see the unit.
Your using a Weight-Distribution Hitch correct?
Chris