Tekonsha Prodigy P3 Wiring Harness For 2011 GMC Sierra 1500
Updated 11/03/2025 | Published 01/01/2025
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Question:
Do you have a wire harness to connect a Tekonsha Prodigy P3 brake controller to a 2011 GMC Sierra 1500?
asked by: Reggie R
Expert Reply:
Hey Reggie, thanks for reaching out. So we do have a wire harness for the Tekonsha P3 on a 2011 GMC 1500, it is the universal 4-wire pigtail that comes with the P3 controller (pictured below). The 2011 GMC 1500 does not have a plug present under the dash, but the brake controller wires are already present under the dash. You will just have to splice the universal pigtail into the wiring under the dash and you will be good to go.
If you need the pigtail by itself we offer it as part # 7894.
The install video I linked below will show you exactly how its done, including the location of the wires. Feel free to comment below with any questions.
(click to enlarge)
Product Page this Question was Asked From
Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Splice-In
- Under-Dash Box
- Under-Dash
- Up to 4 Axles
- LCD Display
- Multiple Trailers
- Tekonsha
more information >
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Jesse M.
11/3/2025
Hey Reggie, how did things go wiring the Tekonsha P3 into your Sierra? Did the universal pigtail connect smoothly with the factory wires under the dash? Your update could make it easier for the next person working on the same setup.