No memory function for passenger belt height adjustment -- a bug or a feature?

[notorious]

Originally Posted by IT

Not too hard to fix though if you seek perfection

I wonder if there is capacity in the seat memory module for those wires. I can snake those 3 wires anywhere in the car, the question is if I approach memory seat ECU with those wires will it have 3 empty terminals for passenger belt rheostat? I studied wiring diagrams I didn't find those 3 wires.

Where is seat memory ECU located by the way?