gmctd wrote:
Considering your locale and the type of roads(?) the little mule must needs accomodate, I would be exceeding leery of running power wiring back along, below and underneath the floorpan to a critical device connected to a fuel source - much more secure and reliable to pop the carpet and use the wiring so thoughtfully provided by the good folks at DCJ, aamopo.................
First off, I agree that using the factory harness under the rear seat is preferable - both from the aspect of keeping everything inside the cab and a shorter wiring run. But....
He mentioned running the wire along the fuel lines back to the pump. With how the fuel lines are routed, and especially if he has skid plates installed - if he gets in terrain rough enough he has to worry about tearing up the metal fuel lines, lord help him!!

IMHO, in that scenario he's taking his CRD where it has no business going to begin with.
I rigged up my Kennedy lift pump way back when, before we tumbled to the fact that we already had the power circuit and wiring ran back under the rear seat. I tapped off of fuse 25 in the dash panel, ran the wire thru the firewall at the rubber plug where a clutch is fitted on the manual version, then ran the wire back along the fuel lines to where I had the pump mounted.
Never had any problems or issues with it, but then my beast sees all road use. IMHO, using the harness under the rear seat is still preferable - for my needs, since it's already installed and working, just haven't seen the necessity to take the time and trouble to swap the wiring around.