On my 2000 with Factory Trailer Tow,there was a pigtail in the
glove box that plugged into a connector under the dash(left side up near the steering column,as I remember). I had the "Sentinal" until I switched to the Jordan. Be sure and check the directions with the Voyager. On the Dodge's the wires are not exactly the same colors. . ie,red to blue or something like that... I am selling my Sentinal but may be able to get the directions for it re,the wire colors.
Fuzz