I have an 08 LX (RT in USA) with a universal trailer light converter that works off the rear tail light. All my trailers have LED lighting so as not to overload the factory wiring. The new trailer I just bought has electric brakes. Can I just install a prodigy controller and run a separate wire (blue) from the unit to the rear 7 blade connector for the brakes to work? Of the 4 wires, 2 are feed , one feeds the trailer brakes and one feeds the brake light wire.