Deb, the brake controller is the device that sends the braking signal back to the trailer brakes. You may have seen them in tow vehicles, usually mounted under the dashboard. HERE
is a link to Tekonsha, a company that sells good brake controllers. The Prodigy and P3 are both great ones. etrailer.com
is a good company to buy them from. You mentioned previously that the quote you got included wiring in for the trailer brakes, did this not include the controller?
It is not necessary to supply 12V power to the trailer from the tow, but I would highly recommend it. It charges the trailer battery as you drive. You just need a fused wire from the charging system on the tow to the plug the trailer hooks in to.
2017 Escape 5.0 TA (someday soon, I hope
2015 Ford F150 Lariat 3.5L EcoBoost
2009 Escape 19 (previous)
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