Come straight from the block heater to the frame rail and run along the frame rail to the front of the truck. I have mine ran so it lays in the bottom tray of the bumper. That way I can just reach in through the opening in the bumper and pick it up to plug it in.
Randy
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03 SO/Auto, QC/4X4, TST/Smarty, Boost/Fuel/Pyro/Rail Pressure, SPS-62, Goerend, Amsoil 4510, Walbro, Arson CP3 Kit, GDP Power-Flo, Grid Eliminator, Fuel Tank Vent Mod, Donaldson 51", Flux 1's, ARP, 605/1172, 13.16@108.2