The green B75 and B76 connectors that mate together -> I see RL to B75 connector (terminal slot 1) and BR to B76 connector (terminal slot 1) on the STI wiring diagram I have for the for the test connector. This wiring diagram is for a 2006-2007 MY but the same circuit colors may have been used on your 2004. Just keep in mind that the B76 circuit colors are different between STI/WRX/2.5i.
RL = red/blue stripe
BR = black/red stripe
I have a photo of the connectors but since its on a WRX the circuit colors are different RL and BY. So maybe not much use for you, sorry.