2015 Ford Police Interceptor Utility, Curt 56306, and trailer power  

I have a 2015 Ford Police Interceptor Utility and purchased the Curt 56306 in order to hook up to my 7 blade travel trailer. My hope was to be able to charge the battery while driving. I have the 56306 plugged into the vehicle wire harness - it connects to only one connector, so it is not utilizing the T and the other connector is not plugged into anything. I have wired the 56306 as per the written instructions vs the plug wire colors indicated on the part itself. The trailer lights work: blinkers, brakes, and tail lights. However when I use my standard tester to test the pins on the Curt 56306, I do not seem to have power on the other pins, so I assume I am still not getting power to help keep the trailer battery charged. From what I understood the curt 56306 when plugged into the Ford harness would power everything, without having to run additional wires. What am I doing wrong? Or what else would I have to do to be able to get power to charge my battery?

asked by: E C

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