Friend of mine would like to do this. Anyone know how to remove the caps so he can sleeve the cables? If not, any secrets to doing it an alternative way?
Most* prewired Serial ATA power connectors are factory assembled with the wiring. They use a non-reusable connector design and should be clipped off if you plan to replace them. If it's obvious that they're not going to come apart cleanly, then save yourself the trouble and buy some IDC versions. IDC, or Insulation Displacement Connectors, bite into the wire insulation for an easy, effective connection. You can buy them at many online vendors. Here is one example: