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Trailer Wiring Harness Installation - 2011 Mazda 3 Video

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How to Install a Trailer Wiring Harness on a 2011 Mazda 3


Today on this 2011 Mazda 3, we're going to install part number 118420, this is a T-One Vehicle Wiring Harness with a 4-Pole Flat Trailer Connector. Now to install our wire harness, we have to get inside the vehicle and remove some access panels so we can make our connections and also route wires from the driver's side over to the passenger's side. Let's go ahead and take this panel and get it out… see more >     


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