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Today on our 2017 Jeep Grand Cherokee, we'll be having a look at and installing the Hopkins 7- and 4-pole trailer connector socket with mounting bracket. Part number HM40975. One thing that I really like about this wiring harness, is that it gives us all the functions that we're going to need. We have our 4-pole flat, but we also have 7-way, which gives us a charge line, a backup signal, in case… see more >
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