Originally Posted by jennykatz
I was told by a reputable trailer hitch business that a Prodigy RF will work with just a 12 volt (black) line going to the 7 way plug .The RF unit has a gyro in it knowing when tow vehicle is braking and it supplies juice to the brake line . Otherwise one must buy a brake controller and find the plug and play fitting and then hook it up . Since i didn't know how long I will keep my 07 Sequoia my 21 Escape
can be pulled by any vehicle that has a 7 way without its own brake controller . Also my Sequoia did not have the Trailer towing package so I had to go with a RF unit anyway .I hope this clarifies the brake controller dilemma.Jim
BTW look up Prodigy RF on you tube to get an idea of how it works
But the 7 way has to have a brake wire and has to have the power line to it or it couldn't control the braking. The only thing I can see that the Rf unit does is save wiring the brake controller itself, but the vehicle still has to be wired to power brakes
on the trailer. Otherwise you could plug into a 4-way and do the same thing.