I forgot to mention that one can go back up in the thread and look at the pictures for clarification, as the drawing is based on the same viewpoint as the pictures.
The bottom line from Simon is that the wiring on his is not original and that this info (pics and schematic) will help him sort things out.
Another testament to the power of the Forum!
It is better, of course, to know useless things than to know nothing. - Seneca