Trailer connectors in military organizations A number of standards specific to military organizations exist for trailer connectors, the electrical connectors between vehicles and the trailers they tow that provide a means of control for the trailers. These can be found on surplus equipment sold for civilian use.. Standard Military vehicle wiring information (letters are marked next to connector contacts)
Additional military wiring diagrams available. Please email parts@mycotrailers.com or call 941-748-2397.. This is a video about how to convert an M101A1, A2, or A3 trailer from the large 9 pin NATO plug to a standard 4 or 7 pin civilian plug. Make sure you check out the link to the wiring schematic as.