IIRC there are 2 wires you need. . .1 for +12V constant and 1 for illumination. According to Ravenside's web site, you tap the blue/red wire. I'm looking at the wiring schematic from the Subaru wiring guide and it shows +12V constant as a LR, which is light red I would assume. Illumination should be the orange/white wire.
Calvin