That plug isn't used. If it's like the Accords, it's a jumper for when you want to set the timing or check for codes.
Anyways, 90 and up cars have DRL. You need to get the circuit board that is inside the DRL relay case (you should only need a flathead screwdriver to pry the tabs and the thing should slide out). Then solder all the points on the backside of the board (there's quite a few).
This is a diy
http://www.nyx.net/~smanley/hondadrlfix/