let me re-phrase it.from the sending unit the tan wire travels towards the fuse box and has a female connector on the end of the wire which fits perfectly into the fuse box that reads fuel gauge ext.but nothing happens.fuel gauge needle stays or is stuck at past full reading. ican see that behind the gauge itself are two wires one black and one tan that conect to the back of the gauge.the ground is good from the fuel tank to the inside cab.