I don't have your model of vehicle, but we ran ours by first taking down the cab headliner (which we had to do anyway because we were installing new side and rear cameras), removing a cabinetry end cap, and then fishing the line back behind the interior finishings and cabinetry.
It was a long run of line, so we used a shock-corded tent pole to push it backward from the point where the cabinets terminate at the slider. The shock-corded pole was convenient because the different sections could remain bent down until they needed to be extended.
So, back behind the cabinets, and then forward under the interior skin to the cab. The job was easier than I expected it to be.