Thanks for the response. That makes sense I did note that where cable plugs in it says sound but thats it. Would it be possible to order a bulb from Bachmann? Thanks...

Hello everyone. I bought a used but in very nice physical condition Pennsylvanian big hauler recently thru ebay.  Set up the track and hooked the tender car to the engine with the single cable.  I get sound but didnt see the front light come on. I noted one of the wires was loose from the white plastic piece that plugs into the engine from the tender. I do hear sound when the train moves but no light. Does anyone here have this particular train and has experienced this? I don't see a separate plug for light so assume the light and sound is thru the one cable coming from the tender. I just want to be sure im not missing something as far as a switch or something. Thanks...