Recommended Vehicle Wiring Harness With 4-Pole Flat Trailer Connector For 2017 GMC 1500 Denali
Published 12/01/2016
Question:
I have another silly question.....so this light bar has reverse lights. A 4 way connector does not (so assume there is another wire coming from the light bar), but the truck is also equipped with a round 7 way plug. So, that begs the question - have you got something I can splice into behind the 7 way and therefore not have to splice into the reverse light wire in the tail light.
asked by: David C
Expert Reply:
On your 2017 GMC 1500, I recommend using the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector, # 118384, to add that 4 way connection. There will be a connection behind the bumper that will allow you to simply plug in this harness without cutting or splicing. It is a simple plug and play assembly.
I've attached a video of this installation on a 2012 GMC Canyon, and your installation process on your Sierra will be the same.
Product Page this Question was Asked From
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- No Converter
- No Tow Package
- 4 Flat
- Plug and Lead
- Plug-In
- Visible
- Tekonsha
more information >
Featured Help Information
Instructions
Continue Researching
- Q&A: Recommended Rear Anti-Sway Bar for a 2021 Ram 3500 Dually
- Q&A: Can the Brophy Slide In Camper Tie-Downs Be Used w/ a 2026 Ram 3500 Dually?
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Trailer Wiring Diagrams
- Article: How to Install a Brake Controller on Chevrolet / GMC 1999-2006 Pickups
- Article: How to Choose the Right Trailer Hitch Class
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: Holiday 2025 | RVers’ Favorite Gear & Road Picks
- Article: Holiday 2025 | Best Gifts for Towers
- Article: Holiday 2025 | Best Gifts for RVing
- Q&A: Trailer Hitch Recommendation for 2024 Chevy Silverado 1500 with Factory Hitch
- Q&A: Recommend Hitch for a 48 Extension on a 2023 Ram 3500
- Q&A: Hitch For 2011 Toyota Tacoma to Replace OEM Hitch
- Q&A: Trailer Hitch Fits for 2019 Chevy Silverado 1500
David
12/1/2016
I have another silly question.....so this light bar has reverse lights. A 4 way connector does not (so assume there is another wire coming from the light bar), but the truck is also equipped with a round 7 way plug. So, that begs the question - have you got something I can splice into behind the 7 way and therefore not have to splice into the reverse light wire in the tail light.