i just purchased my black housed dc2 headlights, , im trying to find out what the brown 4 wire plug powers exactly? obviously i know what wire connecter powers the turn signal and the low beam im assuming thats connected to the projecter hole....my concern is if the brown 4 wire plug powers the high beam and fog light? if not then im trying to find out what exactly that brown plug powers and how you hook up the foglights that have the yellow bulb on the far inside of the headlight....hope im not making it to confusing, just trying to find out how to hook up everything so it all works properly

 

Are you talking about the JDM ITR headlights?

If so here you go.
https://honda-tech.com/zerothread?id=2195061

 

yes they are type r jdm black housed headlights