M50B25TU E34 Auto Engine Harness Question

[N-Gen]

Right, I'm a bit confused about the whole matter so I need some clarification.

The ECU plugs for the engine and trans (I won't be using the auto part of the loom since I pair it with a manual box) is on the passenger side of the car. I'm under the assumption that's correct for an E34 harness.

Should I just open the wiring box and re-arrange the wires to change the plug's location to the driver's side and mount in the standard ECU location next to the steering wheel?

Is there anything I'm missing?

[DanThe]

LHD?

The RHD loom is not long enough to get the ECU into a reasonable position under the dash

[N-Gen]

It's RHD. So I'll either have to change the harness or house it in the engine bay then?