Convention states that the perspective of components is as seen from someone sitting in the driver's seat.
That said, people posting are not authors or editors of repair manuals and will sometimes use a different perspective. This is why additional qualifiers are required.
BTW, this is a Talk-quality thread.
Good luck in your searches.
If you post on your thread again, try to answer the questions people ask you. Otherwise no one can help much (and you have an outstanding audience with JRichker, Joel, et al).
Good luck.