Hello Model Train Friends,

I'm not a model railroad enthusiast, but I'm attempting to help my dentist who gave me what I believe is a Lionel Trainsounds Whistle Tender from circa 2007.  He said that it no longer works and there was a disconnected blue wire that comes out of the tender in front of the forward trucks. 

I offered to resolder it for him, but I can not figure out where it should be attached to.  Can somebody help me?

It is a single blue wire that comes through a hole in the floor of the tender by itself.  I'm guessing that it either should be attached somewhere to the front truck, or I notice on the connecting arm (coupler?) that protrudes forward towards the engine, there is a tiny hole along side the C clip - perhaps it gets attached there?

Please feel free to email me at ab1dq@arrl.net if you can help.

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