Oh, quick note here, I listed the incorrect ECU. It's a WRXLink V7-9, it's a 5 plug unit. Sorry about that!
Also, I attached the relevant wiring diagram which is essentially the body harness from an 01-03 Outback H6 (which mine has) incase you need any reference.
If I can help any other way, let me know!
EZ30-diagram-from-rhino (1).pdf