This is all correct advice, except I offer (IMHO) a better choice of cylinder around which to shape the hook: the cardboard tube from a roll of aluminum foil. It's easy to punch a hole in one side, stick the connector through the hole, and pull the heatshrink-wrapped cable around the tube. It matches the curve of an ear relatively well, so you can even angle the curl a little so that when you take the cable off the tube, the cable will angle toward the skull just a little, getting the cable right up against the head and neck.