T-One Vehicle Wiring Harness Installation - 2017 GMC Acadia Oct 27, 2016How to Install the T-One Vehicle Wiring Harness on a 2017 GMC Acadia. Today on our 2017 GMC Acadia, we'll be having a look at the Tekonsha T1 Vehicle Wiring Harness for factory tow package and it will give us a 4-pole flat trailer connector.4.9/5(61)Category: Custom Fit Vehicle WiringBrand: Tekonsha 2017 GMC Acadia Trailer Wiring | etrailer Lowest Price Trailer Wiring Guarantee. Installation instructions and lifetime expert support on all purchases of 2017 GMC Acadia Trailer Wiring. Order online at etrailer.com or call 800-298-8924.
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