The worm drive cable travels through a metal tube in the C pillar... look back behind the metal and you'll see it. Once it gets to the top of the hatch hoop it comes out of the pillar and the metal tube is also covered by a foam tube... the drive cable travels through the first lifter arm, through a second tube to the second lifter arm.
That's the best I can explain, it's what I remember from yanking that stupid thing out of my car and replacing it with manual latches
