I've read up on the mods required to lock the center diff on Phase 1 4EATs: find the wire that powers the solenoid, and disconnect it. From what I've read it's supposed to be functional whether or not you give it a resistor bank to dump power into, but will make the AT light flash if you don't.
However, I can't find anything about it on a Phase 2. I have a 99 Outback and would like to set it up with a switch to lock the center differential for off pavement. I'd like to find a rear LSD but hear the VLSD isn't much good anyway, and they're difficult to find around here.
Has anyone tried it on their Phase 2? If so I'd appreciate any advice on it. I've found the wire (or at least it tests right) but know some things are different and would rather check before I hack up factory wiring.