I am having no success finding the "blunt cut, heat shrunk" wires to install a brake controller on my 30 TSC. Nexus has posted a copy of the International Navistar Body Manual depicting the location of the harness under the dash. I have been under the dash and even used a remote LCD micro camera in an attempt to locate the described four wire harness. I contacted Nexus, and they politely recommended that I search harder. The Navistar help desk was pitiful, told me to take it to an International Service Center. Does anybody have any experience with the Nexus 30 TSC brake controller harness location?