For those of you with Clazzio seat covers, how did you do the string on the back seats?

The installation booklet isn’t great and I can’t find any detailed install videos for a 4Runner. When you put the seat bottoms on the back seats there is a string that goes around behind the seat. My seats have smooth curved plastic all the way down the sides of the chair base to the bottom where the rail slides are. If I tie across the bottom there, the string lays taught on top of the rail which is just asking for trouble when someone moves the back seat. Is there something obvious I’m missing? I dont see any other way to route the string across the back to avoid the rail while at the same time being effective for tightening the seat cover.

if no one has a clue what the heck I’m talking about, I dont blame you and I will try to get pics up in the morning.

edit: ended up tucking it into the back of the backrest cushion above the Velcro so it shouldn’t drop down by the rails hopefully

 

I have clazzios. Will take pics for you after work