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I have connected my brake box to factory plug under dash, but when wireing the 6 pin connector I am having trouble fiquring out which factory wires are the Brake feed and battery charge.
I did find two (tow pin) conectors at the spare tire, is one of those it or where do I splice in. I have all other (signals, brake light and ect)wired and working.
Thanks
On 6 pin connector(the one at the receiver)the center pin should be the brake feed, same as when you use an adapter from 7 blades RV to 6 pins round. when using ford plug,(7 blades RV) 1 oclock position is the + batt,
3 oclock=RH flasher/brake, 5 oclock= brake feed, 7 Oclk= ground, 9 oclk=LH flasher/brake, 11 oclk= running light/marker, center pin= backup lamp.
using an adapter to go from 7 blades RV to 6 round pin make it easier because you just have to open the adapter & swap the blades to match you trailer wiring.
hope it help wrench