Volume flex cable - how+where to attach?

Hi there,

I got a completly dissambled Xperia Z Tablet, replaced the screen, put all the parts back in their right space, thanks to the internet, and it works.

Still, one thing that I couldn´t figure out how it needs to be "wired" appropriately is the volume flex cable.

The cable is loose and I don´t have a clue how and where it needs to be attached. [see picture]

Huge thanks in advance.