factory high back buckets with harness

looking for any pictures of going through the factory seat back with a harness, and explanation on how it is done,
thanks

Dustin, you might also post on the Drag Week FB pages.

My wife modified my Volare seats like this. Top pic is the crotch strap. She cut the hole. Then made a tube piece of material for the belt to go thru. That was sewn to the cut hole.
Doug