Hey Mike, welcome to CB! Lot of pains with ignition switch wiring in the recent past it seems. What year is your Bronco by the way?
On some, there is a red wire that goes to what's called an "Ambient Switch" somewhere. I think that's a '72 year only thingy though.
The Purple wire (sometimes Purple w/white) goes from the ignition switch (the little side terminal all by itself I think) straight down to the frame mounted H-block for the brakes. The other Violet wire that comes out of the connector on the H-block goes back to the dash "BRAKE" light, and then splices into the Green w/red wire from the ignition switch too.
That same big Green w/red wire should connect to the center post of the switch, if I'm not mistaken. Should be obvious though, if it's got that big ring-terminal on the end.
That Green w/brown is probably just a faded red stripe. Should be Green w/red. Some years it's Pink. Either way, and for future reference, that's your resistor wire to the ignition. It's a "resistor" only between the key and the firewall. Once in the engine compartment, it's just a regular wire.
Hope that helps.
Paul
