I want to convert my old LGB 2-4-0 #20232 from original rail power to RailPro battery and sound  power  Can anyone send me a wiring diagram, or writen instructions, of how to install the  RailPro LM-3S-G fin my LGB 2-4-0 Rio Grande.  It has a 5 pin connector from engine to tender. 
Thanks
Huffduff9