RB5-107

The Select Monitor connection on my MY98 STi has been butchered (guessing something like an old Blitz R-Vit was installed previously before I got the car). Would I be lucky enough that one of the 3 plugs on the ECU has all the wires needed and I could therefore get one from the likes of Grade-A and just plug in?

Or will i need to go hunting for them from the ECU if they're spread out over the 3 plugs?

Thanks in advance.

Neil