Recommended Wiring Harness for a 2018 Kia Soul w/ LED Tail lights
Updated 09/12/2025 | Published 05/23/2025
Question:
I have a 2018 Kia Soul with LED taillights. It appears that the wiring kit C56220 is what I would need. However, I am concerned that severaland/ older reviews point out that some of the wires are too short, requiring splicing in of additional wiring or having to place a module in a difficult to reach space and not being able to secure the module. Has this issue been addressed/corrected since those old reviews?
asked by: Michael F
Expert Reply:
Hey Michael. I haven't heard any complaints or updates about the length of the wiring in the Curt T-Connector Vehicle Wiring Harness item # C56220. We do have an alternative wiring harness that we've never had any issues with. It is the Tekonsha item # 118637 that installs in an identical way and has the same 4-way connector.
Both the Curt item # C56220 and the Tekonsha item # 118637 are confirmed to fit the 2018 Kia Soul with LED tail lights.
What size hitch are you needing and do you already have one?
Product Page this Question was Asked From
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- Powered Converter
- No Tow Package
- 4 Flat
- Plug and Lead
- Plug-In
- Visible
- CURT
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Trailer Wiring
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Shop: Trailer Hitch
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Video: Fifth Wheel Towing Made Simple with Daniel
- Search Results: trailer hitch
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Article: Trailer Wiring Diagrams
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Search Results: trailer wiring
- Video: How to Choose a Trailer Brake Controller
- Video: Curt T-Connector Vehicle Wiring Harness Review C56040
- Search Results: trailer tires and wheels
- Shop: Suspension Enhancement
- Article: How to Measure for Trailer Hitch Drop
- Shop: etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class III - 2"
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Shop: Brake Controller
- Q&A: Installation Time for Blue Ox BX1128 Flat Tow Base Plate Kit for 2016 Jeep Grand Cherokee
- Video: The Low-Down on the Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Search Results: trailer jack
- Shop: Base Plate for Tow Bar
- Q&A: What Is An OEM Prep Package And How Do I Know If I Have It
- Video: Curt Powered Tail Light Converter Installation - 2023 Kia Telluride
on Custom Fit Vehicle Wiring
Jerred H.
9/12/2025
Hey Michael, did you decide to go with the Tekonsha wiring harness for your Kia Soul, or did you stick with the Curt option? I'm curious to know how it worked out for you, as it could help others facing the same decision.