The end stop wires are located in the RAMBo box. They are the black and white wires pre terminated with a blade connector one end and a metal latching connector on the other end. There should be 6 total end stop wires.

Begin with the Z tower location and install a pair of end stop wires on the end stop as shown.

After installing the wires, bend the end stop over as shown.

Route the two wires through the Idler Plate as shown.

Perform this operation for the X & Y tower assemblies.