[projectRDM]

Why'd you cut the plug off?

The JDM switch, if for the same model and year, is a direct plug in to the US harness. All the wire colors match up perfectly. You will then have two additional wires coming out of the switch, these are the folding in/out signals to the mirrors. In fact, even when using the earlier 94-96 switch, the pin out and wire colors are still the exact same, it just uses a different style plug with larger pins. The folding wires should be light green/black and green/black, everything else is the same.

What I would do is if your wiring doesn't match color to color on the new plug, put the US plug back on and reconnect all your OE wires, using solder and heatshrink of course, then depin the those extra wires not being used from the new plug, and pin them into the two empty spots on the old plug. Basically with the mirror switch left OE, not hacked off like yours is, there's two empty spots on the plug. Those are the folding outputs. You can also just wire the new plug straight matched pin to pin, even if the wire colors don't match, as that plug could be from another car.