Fastback Owners Seat Belt Anchor

I need a favor... Could someone measure the location of the upper seat belt anchor in the roof rail on their Fastback for me? I installed my headliner without marking the bolt hole location. Feeling throught the material I *think* I found the opening, but I really don't want to start poking through the `liner. I bought some aftermarket 3 point retractable belts and need to find the upper anchor hole.



NOTE TO SELF: Leave the bolts IN for all the things you have to mount when replacing a headliner. Mirrors screws...sun visor screws...seat belts....ETC.