Mount near the hitch of the trailer. Simply pull back the spring loaded hinged cover on the female opening and insert the male plug and let the cover snap shut holding the plug in place. There is not an electrical connection.

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov