Redarc Plug and Play Brake Controller Adapter for a 2021 Audi Q7
Updated 06/17/2026 | Published 04/24/2024
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Question:
I have a red arc tow pro brake controller from my previous vehicle. Can I use this with a 2021 Audi Q7 with the factory tow package? What cabling would I need to buy. Thank you, Ken Beghini
asked by: Kenneth P
Expert Reply:
Since your 2021 Audi Q7 has the factory tow package you do have a brake controller port but Redarc didn't make a specific plug and play adapter for it. There is a work around that will let you install your Redarc Tow Pro Liberty item # RED24FR or Elite item # RED44FR without having to cut or splice wires. You can use the following two adapters connected together instead of having to hardwire:
Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers item # TK22FR
Redarc Tow-Pro Wiring Adapter for Tekonsha Brake Controller Harness item # 331-TPH-017
Product Page this Question was Asked From
Redarc Tow-Pro Liberty Brake Controller - Dash Knob - Up to 2 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Plug-In
- Dash-Mounted Knob
- Behind-Dash
- Up to 2 Axles
- Indicator Lights
- Single Trailer Only
- Redarc
more information >
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Matt
6/17/2026
I'm trying to wire a Tow Pro Liberty into a 2025 Q7, and am having trouble finding the Tekonsha TK22FR harness. Is there a current solution for plug-and-play wiring for this setup?