G Gauge Shay w/PH Hobbies Sound (need help to find wiring diagram)

[willybug]

I have a G Gauge Bachmann Shay which has the speaker, volume control, charging plug and toggle switch installed.  The sound card and charging unit has been removed and I want to re-install it.  I have been looking without success on the web for a skematic /  diagram or help for wiring connections.

Photo of the PH Hobbies card and charging unit can be viewed on the following link: http://picasaweb.google.com/BillCurtindale/PhonixSound#5422137745692055778

Need help for wiring diagram / skematic, wiring connections.