they thread through the seat flat, Then will be mounted at the base of the rear seat towards the bottom of the car no more than a foot away from the back of the front seat. This means that the harness lays compleatly flat on the gaps at the top of the seat, you can twist the harness about 90 degrees each way without effecting the way they feel. Shouldnt twist the harness anything more then at all TBH the bolts nearly flat. When i get out of the office ill take a photo.
Im trying to mount the harnesses as close to the seat as possible, So many people mout them to a rear strut brace or somthing simular, which is great, until a truck goes up the back and folds the car in half and slacking the harnesses