This loco has a QSI sound setup and a DCRU pckg I do not recognize. I'm having a bit of thought of installing a Dallee DCRU (if it can handle the motor current) as the one in the loco now is "sticky" and my backup light only works occasionally. I would like to know what the 4 pin connector on the loco goes to (in order). I assume the 2 brush leads, ground and hot wire to rollers. Also I sort of doubt if I can get the QSI sound to work at all if I attempt this. In this time period Ott sound and QSI are almost Identical (my opinion) and I have the Ott pckg if I need to trash the QSI sound and just do a total overall. 3rd rail no longer has a wiring diagram for this loco. I just called them. The loco has constant voltage headlight and a backup light. I've put Dallee units in other postwar locos but I am trying to make sure I get it set up right as I cannot see where the 4 loco wires attach inside the engine. Thanks for any help.
o gauger
