Wiring Needed For Curt Echo In-Line On 2027 Toyota Highlander
Updated 10/08/2026 | Published 10/05/2026
Products Featured in This Question
Question:
Hi guys, my 2027 Highlander has a hitch for our bike rack but no trailer wiring. We're buying a pop-up with electric brakes and I want to use the Curt Echo In-Line. What wiring do I need to add?
asked by: Natalie F
Expert Reply:
Hey Natalie! To install the Curt Echo In-Line # C79DR on your Highlander, you'll need to start by adding the Curt 4-Way Wiring Harness # C56RV. You can then upgrade this to a 7-way using the etrailer Installation Kit # e556GR.
This kit comes with the 7-way adapter, wiring, breakers, and hardware needed for installation. It also has the USCAR connector the Echo requires, so you can plug the controller in-line behind the 7-way.
What pop-up are you buying?
(click to enlarge)
(click to enlarge)
(click to enlarge)
Product Page this Question was Asked From
Curt Echo In-Line Bluetooth Brake Controller w/ OneControl App - Up to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Plug-In
- Smartphone App
- Under-Dash
- Up to 4 Axles
- Smartphone Display
- Multiple Trailers
- CURT
more information >
Featured Help Information
Instructions
Continue Researching
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Brake Controller Installation: Starting from Scratch
- Article: Towing a Trailer? Let's Talk About Brake Controllers
- Q&A: How to Use a Curt Echo Wireless Brake Controller on a Vehicle w/a 4-Way Connector
- Q&A: Recommended Anti-Rattle Collar for a Bike Rack on a 2" Hitch
- Q&A: Length of Coleman-Mach Underbunk RV AC Power Cord
- Q&A: Will Redarc Tow-Pro Link Work On 2021 Silverado 1500 With Factory Brake Controller
- Q&A: Is There a Trailer Hitch that Fits 2026 Toyota RAV4 Hybrid
- Q&A: Recommended Brake Controller w/a Custom Installation Harness for a 2026 Ford F-150 w/a Factory 7-Way
- Q&A: Which Wireless Trailer Brake Controller Is Best
- Article: 2005-Current Volkswagen Touareg, Audi, or Porsche Cayenne
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: 30-Amp and 50-Amp RV Service: What's the Difference?
- Article: Breakaway Kit Installation for Single and Dual Brake Axle Trailers