I'm looking for APU fuel pump location for A320 aircraft series. I'll be much appreciated if you provide a link to some images, schemes.
According to the image below it seems that the APU fuel pump at the aft side of the center fuel tank.
And this is the view from inside the center fuel tank looking aft:
Note the pump still draws fuel from the left line, and not the center tank, it activates automatically if the left side engine fuel pumps don't provide the required pressure.