7-Way Upgrade Kit For A 2025 Volvo XC40 That Has An Existing 4-Flat
Updated 11/06/2025 | Published 09/23/2025
Products Featured in This Question
Question:
I have a 2025 Volvo XC40 with hitch and 4 pin electrical connector. Can I use the Prodigy RF brake controller that I already have? What 4 pin to 7 pin adaptor do you recommend?
asked by: Susan H
Expert Reply:
Hi Susan!
You can definitely use your Tekonsha Prodigy RF Wireless Brake Controller - Trailer Mount w Remote - 1 to 3 Axles - Proportional # TK94FR with your new 2025 Volvo XC40, but you will need a bit more than just an adapter.
Having the 4-flat already makes the process easier, but you will need the 7-Way RV Upgrade Kit for Trailer Brake Controller Installation - 12 Gauge Wires # ETBC7L to get the controller working. This will piggyback off that 4-flat and you will just need to run a wire to the battery, and you are good to go. It provides the needed 12v power to run the Prodigy RF controller. We haven't done this install on an XC40 yet, but I did include an install video we did on a 21 XC60 for you to check out.
What kind of trailer are you going to be towing?
(click to enlarge)
Product Page this Question was Asked From
TowSmart 7 Pole to 4 Way Connector Adapter
- Custom Fit Vehicle Wiring
- Wiring Adapters
- Universal Fit
- 7 Blade to 4 Flat
- Plug Only
- TowSmart
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Q&A: How to Measure a Trailer Wheel Pilot Hole to Choose a Replacement Center Cap
- Q&A: My Vehicle has a 4-Pin Trailer Plug, but Trailer has 7-Pin Trailer Plug
- Q&A: Parts Needed To Tow Nucamp Tab 360 Camper With 2022 Ford Ranger
- Q&A: Looking For Pre-Greased Hubs For Utility Trailer With Timken 442251 Seals
- Q&A: Troubleshooting Brake Controller with OL Code when Brakes are Applied
- Q&A: Can I Swap Out the 2" Ball for a 2 5/16" on the Buyers Products 10 Ton Combination Hitch?
- Q&A: Bolt Pattern of Buyer's Products 10 Ton Combination Hitch
- Article: Choosing the Right Suspension Kit for Your Truck and Trailer
- Article: Parts Needed to Add Hydraulic Disc Brakes to a Trailer
- Article: Trailer Wiring Diagrams
- Article: The Ultimate RV Camping Checklist for Your First Year RVing
- Article: 4 Reasons Not to Use RV Solar Power (And 4 Reasons You Should)
Lazer S.
10/22/2025
Hi Susan, how did things go getting the Prodigy RF controller working with your Volvo XC40 using the 7-way upgrade kit? Your update could make it easier for the next person setting up a similar tow vehicle.