My EZDown keeps getting stuck on the cable when I try to close the tailgate.

The cable will at first require a little guidance to tuck into the channel. This helps create a memory into the cable so that it eventually goes into the channel on its own. One way to set this a little faster is to tweak the cable, simply meaning that you manually pinch it by hand at the bend point so that it remembers the final position. If this is not done, the cable will learn it on it's own by repeated closures until the tailgate shuts correctly every time without having to touch the cable.