There’s a reason I never posted about adding the water feed to the ice maker. When I was drilling into the floor I let go of the trigger and the bit got stuck. Other than that, small hedge clippers cut through the water pipe (PEX) and remember to push hard when attaching that T-shaped connector! Basically drill a hole in the floor behind the fridge, turn off the water, cut the PEX, insert the T, feed the small tube through the floor and plug it into the back of the refrigerator. Turn on the water with a bucket to catch any leaks. Run it a few times before using that ice!
Grab one of these, it’s easy: http://www.menards.com/main/kitchen/kitchen-parts/quick-connect-ice-maker-install-kit/p-1713063.htm