Keep in mind that the length of the cable wants to be short enough that the brake away switch pulls free before the chains go tight in a hitch failure. Looking at the factory supplied cable on your system that may not be the case. If so you want to shorten the cable.
I like to feed the cable through a D clip on the hitch release handle to insure the cable is supported across the top of the hitch and held so it can not get tangled in the hitch when turning.
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles