rb20 s13 wiring questions

[redsledguy]

Hi, I've read everything I can find. read Carl H's writeup, and countless others, and I've got the o2 and maf wires done, finished up the wires to tha plug beside fusebox, etc., but my question is at the bottom of the page when it's talkin bout the 3 plugs... I've got 3 plugs on the rb harness, but 1 brown plug on the ka harness... I'm really confused as to which one is which. I've got the whole dash out(for other reasons), but the only wires I'm sure of is the water temp, and tach. any help clearin this up would be greatly appreciated.

also, how does the speedo wire get from fusebox to cluster? does it go around the front of the car and go in that way, or does it go to gray or brown plug beside fusebox? I couldn't really tell. If someone doesn't say I can get the loom off, not that big of a deal.