I am trying to remove the seats and install seat covers

The front seats are easy. There is a cable underneath the left front which I suspect is for passenger detection to detonate or not the airbag.

The rear seats really give me grief.
The lower bench is easily removed by the two bolts on either side.

The rear back however, I removed the centre on (14mm) (Figure 4) and the diagram attached shows some pins on ... but I have no clue where that is on Figure 5 ??

Has anyone removed the back bench before?

Image is from rear.
Not sure about brava but with mareaweekend you need to remove the luggage hooks on the floor to lift the mat up.

Managed to find it.

I had to unglue the carpet in the boot and then I found the hook as pictured in the manual.

Job done now i have new tan leatherette seat covers now