SeeMeCNC Rostock MAX v2 Assembly Manual page 108

Now route the four 22ga extruder motor wires from the Y axis tower till they touch the center
hole. That will give you about 8" of wire from where the wires exit the top of the Y tower to the center
of the top plate.
Fig. 7-37: Extruder drive wires.
Use a bit of Scotch tape to hold the wires in place. If you fold over the end of the tape, it'll give
you a nice handle to pull on when it's time to remove it.
Rostock MAX v2 Assembly Guide
108