Question about the switch on the psone screen

[thewise1]

So according to this diagram

there should be 2 wires coming from the screen to the switch
but according to this pin out

there's only one wire for the switch.

So how do I connect the headphone jack to the screen.

[thewise1]

Also I need this to finish the portable. Not that I'm trying to hold my portable hostage here, just need the info.