DX to EX conversion has been moving along in my hatch, but I'm having a hard time figuring out where this brown plug under the passenger side and this strand that is coming from the center of the dash are supposed to go. I think I may have worked a little longer than I needed to yesterday, but any help is appreciated.

I have a K24A2 swap with a Rywire harness, Hybrid Racing conversion harness, and a K Pro, if that changes anything.