white black goes from alt to volt regulator brown pink ignition switch to starter relay little post this is start orange blue alternator to regulator red yellow hash used in carbureted app don't know if in your plug red white coolant temp guage to coolant sender white red is same as water temp only this is for oil pressure orange blue alt to regulator grey and yellow I believe is not used in bronco II you're on your own but it does come off of ignition switch.
hope this helps.
roscoe
ps this is '84 bronco II wiring diagram I believe it is mostly accurate

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roscoe 0202
hi newb here truck 94 b4000 mazda aka ranger
truck is stock just runaround
have project bronco II
i'm 74 and retired
roscoe