just finished installing this myself.
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I routed the cables in such a way that they wouldn't sit below the transmission. In doing so, the way they went, i had to trim a few inches off the splash guard when reinstalling it to make room for the cables. A piece of silicone hose covers them where they lay against the coolant pipe (no pressure on the pipe, just touching it) to prevent rubbing/wear of the pipe or the wires.