Underneath the seat is, a plug yes, but it is actually what the fuel comp plugs onto, DONT give it a live feed...

IF ya wanna supply a live direct to the pump, get underneath the car and do it, there is a yellow and a black plug on the pump, the one with the brown wire will be the earth.... chances are pump is fudged, especially if you try it again later and its the same.... scan through the search facility type in pump or summt see what comes up, someone may have already asked the same mate...