We have about six cubicles up against a wall in an office building. I am taking the 2 on one end apart but the first one has the power fed into it from the base of the wall from a hard wired box. Since I'm taking the first 2 stations apart,the electrical cable will not be long enough to reach to keep the other ones powered. Can I extend this cable in any way or do I have to get a longer one and wire it into the box on the base of the wall?