So WHAT'S wrong with your idea ?
Sounds logical to me if you want to HIDE the Wires it's the way to go.
If HIDING is of NO concern, you could just Tape or Zip Tie the Wires to the tubing.
There is NO ONE WAY of securing the Wires to keep from just hanging.
Use whatever works best for you that you'd be able to live with, it's your Jeep.
Those that go through life afraid,
Die many deaths......................
Those that DO NOT, DIE ONLY ONCE
But Hey~~~What do I Know ┐