Adding a 4- and 7-Way Trailer Wiring Harness on a 2007 Jeep Grand Cherokee

Updated 07/22/2013 | Published 07/19/2013

Products Featured in This Question

Curt Trailer Hitch Receiver - Custom Fit - Class III - 2"

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$158.65

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

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$24.24

Multi-Plug T-One Connector Assembly for 7-Way & 4 Pole Trailer Connector

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$42.15

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

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$137.45

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

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$124.35

Question:

Is there a wiring harness that has both the 4 pole flat as well as the round connector?

asked by: Steven J

Expert Reply:

If your 2007 Jeep Grand Cherokee did not come with a factory installed 7-Way trailer connector then there will be know plug and play options for a 4- and 7-Way connector but you can hardwire in one using # ETBC7.

If it did come with a factory 7-Way then you can use # 20135 which is both a 4-Way and 7-Way.

If you decide to hardwire in an ETBC7 and you do not already have trailer wiring, you will first need to install a 4-Way using # 118425. Then you will go ahead with the ETBC7 installation. I have included some links that explain the installation for you.

If you also need a brake controller I recommend the P2, # 90885. This is one of our most popular brake controllers because it is reliable, easy to set up, and easy to use.