installing brake controller on 2015 f150
I am not comfortable trying to take the dashboard off. I have unplugged the "empty" plug behind where the brake controller goes and plugged in the set of wires that were in the glove box. Now how do I wire that to the actual brake modular? my brake modular has black, red, blue, and white wires and the plug from the glove box has blue/black, purple, blue/purple and purple. Those are all labeled (ground, to trailer brakes, stop lamp, feed wire). Thanks for any advice.