[RMcNeal]

Assuming your unit is plumbed for ice maker already, all you should need to do is turn on the water to the fridge. On my rig, there's a shut off valve under the sink in the island that comes off the cold water side of the sink (blue pipe) and goes back down into the belly.
A second valve is located behind the lower cabinet to the left of the fridge. I had to remove the thin panel at the back of the cabinet to find it. There are 6 or 8 screws holding that panel on.