Here's the picture that eventually gets posted in these "Where does this one go?" threads:
I think the 'Y' that you are looking at is (G) in the diagram - Some have a 3-way split (manual transmission), some 4-way (Tiptronic).
***I'm pretty sure the original source of the image is the PelicanParts tech articles, but not positive.***
..and here's what happens when you put a Boxster in the garage, cover it, and put a box on top:
The bigger the box, the more cats will appear.
I hope one of those pictures helps. :dance: