4-Way and 7-Way Trailer Wiring Recommendation for a 2005 Jeep Grand Cherokee

Updated 09/10/2015 | Published 09/09/2015

Products Featured in This Question

Draw-Tite Max-Frame Trailer Hitch Receiver - Custom Fit - Class III - 2"

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T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

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Adapter 4-Pole to 7-Pole and 4-Pole

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Tekonsha Prodigy P2 Trailer Brake Controller - 1 to 4 Axles - Proportional

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Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires

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Question:

etrailer has recommended that I wire my hitch with t harnes 118394. If I need to have a 7 way for my trailer can I simply use the adapter 30717. I have an 05 Jeep Grand Cherokee. Thanks

asked by: Steven

Expert Reply:

For trailer wiring you will need to start with the 4-way part # 118394 that you referenced.

Now if your trailer does not have brakes all you would need is the part # 37185 as an adapter to convert the 4-way to a 7-way.

If you do have trailer brakes you would need the # ETBC7 instead of the # 37185 and a brake controller. This kit comes with everything needed to wire up the 7-way and install a brake controller.

For a brake controller I would recommend the Prodigy P2 Brake Controller part # 90885. This is our best selling brake controller because of how well it works and how easy it is to setup.