Product review (4 stars): Don't take out the old one and dispose of any ...
Don't take out the old one and dispose of any parts before you get the new unit.  I had to use the existing electrical harness.  It was a snug fit and pulled free when I first installed it.  Found out when there was no ice the next day.  Pulled the ice maker again, lightly pried the tab up on the top of the harness connection so it would snap more snugly into the new unit.  Reinstalled it and now I've got plenty of ice.