Fuel gauge
 

I just got my fuel level gauge mounted in the pillar. Now I need to wire it up. Can I use the wires from the factory gauge cluster or do I have to run new wires?
It looks like either way will be about the same amount of work, but if I have to remove the gauge cluster, I might as well send of my speedo now (I have 3 spares) to get the white face gauges and 140MPH conversion.

I've been using the factory wiring harness for my guages. I clipped into the harness (12v+,Gnd & signal) and let the feed to the factory gauges hang loose. Of course, I had to change the sending units, but it saved the hassle of running all the wires separately