Since i didn't like the harness seats i had installed I sold them and decided to just cut slots in my comfy stock seats.
As usual, i started with the pass side seat. I pulled the cover off the back portion of the seat to expose the foam. Then i sat in the seat and marked over my shoulder where i wanted the straps to go thru.
centered up everything and figured out how much foam to cut out. marked it and went to it with the razor blade.
Then i drilled small holes in all 4 corners of each hole so i would know where to cut on the back side. once i had the holes there i marked the foam on the back and cut the foam there.
then i cut a big hoop around the perimiter of the foam so i could pull it back and expose the whole metal back.
I figured this would make cutting the metal easier and i'll just glue the foam back when i'm done. You can see the red lines are where the foam is cut and the black lines are where i'm going to cut the metal. I'm making the holes in the metal slightly bigger and will cover the cut edges with some plastic trim pieces (like what you see people puting around thier doors...but not the chrome stuff)
this is as far as i got today. tomorow if i have time i'll cut them out and try to put it all back together. once i get the covers put back on i'll feel for the holes, cut a slit in the fabric and sew them up so they don't rip. I might even get real fancy and sew a sleeve thru the hole.