Checked the Haynes manual and it states on later models, the connection to the ox sensor can be found in the drivers side footwell under carpet.
On the US spec cars, it' son the pass side.
Now, i've stripped both carpets.
On the pass side, there is a cable going into a grommet ot the tranny tunnel (see photo) but it goes to the tranny!
Driver side footwell, can only see kickdown switch and wiring.