Question:
Need a list of components to buy for upgrading my 4 pin trailer connector to 7 Blade, for adding brake controllerP3device to tow a toy hauler. Thanks
asked by: Donnie L
Expert Reply:
We have put together a kit that includes all the parts you will need to set up the rear wiring for a 7-Way and prepare the truck to install a brake controller. The kit is part # ETBC7. It will utilize the 4-Way that is already installed and then you will run the included length of 2-Wire up to the front to connect to the brake controller and the the battery for 12V power using the blue and black leads. The purple lead is for reverse lights, if needed, and the white is for ground.
I have included a link to a video showing this kit being installed for a Tekonsha Prodigy brake controller on a 1993 Suburban. It should be pretty helpful and will show you the whole wiring process. The Tekonsha P-3 is part # 90195 and I have a link to it below.
expert reply by: Patrick B

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Products Referenced in This Question
Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
Product Summary:
Proportional Controller
Electric
Electric over Hydraulic
Digital Display
Vehicle Mount
Product Specs:
Automatic Leveling
2 - 8 Brakes
360 Degrees
Universal Installation Kit forTrailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
Product Summary:
Brake Controller
Accessories
2 - 8 Brakes
10 Gauge Wire
Product Specs:
Connector
Brake Controller Wiring
Wired to Brake Controller
Product Page this Question was Asked From
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What is the Temperature Rating on the 10 Gauge Jacketed 2 Wire Part 10-2-1Featured Help Information
Instructions for 90195
Trailer Brake Controller Installation - 1993 Chevrolet Suburban - Video