After you finish placing your cable from nock to nock finish with a soldiers hitch. Take your end go under the belly around the other side.
Go between the back of the bow and the cable. Then go back the way you came.
And repeat.
When your satisfied with it, soldier it off.
then run your end to the other end (do not go around nock)
Wanna be about 10 or so inches from the tip, or the distance of your last wrap on the other end, soldier hitch again. And start wrapping.
Now that line between the 2 end wrapping will get tight along with the main cable
PRESTO! COMPLETE!