Wiring That Comes With ETBC7 For Brake Controller Install on 2014 Toyota Sienna

Question:

I have a 2014 Toyota Sienna XLE. I have mostly installed the vehicle specific CURT 56106 4-Pin Trailer Wiring Harness everything but the power lead running to the battery from the rear. I had been planning to run the power lead through the interior, but cant find the hole in the firewall with the car in my driveway and me contorted under the dash on the drivers side. I have a friend who has access to a lift and we are going to run the wire underneath the vehicle to my battery-terminal-mount fuse-block. I have not decided yet if I am going to go all in on a Tekonsha Prodigy P3 brake controller setup or not, but, while Im at the garage with the lift, Id like to go ahead and run wires from the rear to the front, and into the interior, for whatever wire runs I would need if I do choose to install a full brake controller kit and 7-way setup in the future. Can you tell me what wires I need to purchase in order to be able to move forward later without having to pull wires later from the rear to the front, and through the firewall? Im not sure Ill end up needing the 7-way, and the whole shooting match for the Tekonsha Prodigy P3 and the ETBC7 7-way kit and the brake controller are a little spendy if I dont end up actually using them. Thank you!

asked by: Jim M

Expert Reply:

So the only wire that comes with the Universal Installation Kit for Trailer Brake Controller # ETBC7 is 25 feet of 10 gauge jacketed 2-wire, and you can get that sold by the foot:

- Deka Jacketed 2 Wire, 10 Gauge, Brake Wire - per Foot # 10-2-1

I have also added for you, in case you decide to pull the trigger on the brake controller, links to installation videos on a 2014 Toyota Sienna of both the Universal Installation Kit for Trailer Brake Controller # ETBC7 and the Tekonsha Prodigy P3 Trailer Brake Controller # 90195.

expert reply by: Kyle S