bosch fuel pump and spare wires

I am on my third fuel pump in two years... The last one sounded like tornado sirens going off so I went with the Bosch after reading some posts. The trouble is there is an extra connector (coming from my vehicle) and I am not sure what to do here. There is just a dummy plug in on the pump where my wires should go. I called the auto parts store and the guy was totally worthless. Bring it back in--ok, there goes my mechanic since it is !0:45. I guess I will be off work today. The wires that I have is a sending unit.(?) Does anyone know what is going on with this pump? This is for a 96 Jimmy.