i am a little confused about where to mount the sparco harnesses. they come in 3, 4, and 5 point versions. where exactly do you mount the bolts to?

the stock seatbelt locations only have 2 accesible bolts on the 5th gens, and another behind the center pilliar, i assume.

 

Back seat mounts that hold the clipping in part for the rear passengers.

 

u mount the seatbelts behind the seat. U know how the sholder straps go behind u in both sides, they have to mount somewhere behind the front seat.