[chrismorse]

It will never be easier to get this done.
Put a magnifying glass on it and see if some of the strands have been cut by the vampire clip.
Gently flex the wire to determine if the "strength" of the wire has been reduced by the afore mentioned Molestation of the wire. If it seems to flex/bend/hinge at one or both of the locations, it is time to cut out the section of the wire, unless you can get to an end connector, then replace that section, solder and heat shrink x2 to protect and stiffen the repair section to reduce the potential flex/failure of the joint.
If you cannnot disassemble an end connector to slide one or two pieces of shrink tube over the prior areas of connection, areas, then liquid tape is perhaps a better fix than ratty looking tape.
Murphy has taught me that the fewer the joints, the less likely the wire/pipe is prone to failure.
A POX on the miscreant that violated the integrity of your wiring harness,
FIE,
chris