It's a 92 Honda Accord. Had an intermittent no start issue that is fuel related. First thing I change the fuel pump. Then I put everything back together and Im getting no power at the pump. I also changed the main relay. Still no power at the pump and the fuses are good. Everything is plugged in and hooked up. Pump works fine when I jump the pump with power. Only thing I found suspicious is there is a gray connector I found in the trunk plugged into nothing, but I don't see another harness to plug into it.. does anyone know if this plugs into anything, because the harness runs from the pump to the brown connector (guessing it is for fuel gauge). from there it goes into the trunk and splits off between the gray mysterious connector and then it grounds. Any help?

 

pics of where plug is