according to the haynes manual, tan/white wire goes to fuse #4, and is "HOT AT ALL TIMES".
the red/yellow wire goes from the main light switch to the dimmer switch.
a week or two ago, my headlights became "intermittent". i ended up pulling off the steering column shroud and removing the blinker lever thingy(two torx screws on left side of column). two wiring harnesses connected to it. one of them, the topmost one, i think, had one wire that was getting hot enough to melt the plastic plug. that particular wire had a pretty dirty connector(terminal?). scraped away at the male and female components of the connection with the pocket knife for a few minutes and ended up with headlights way brighter than ever.
anywho, dirty connections = resistance = heat = possible charred wires/connectors. my inertia switch plug also was pretty much twisted out of shape due to some dirty connections.
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