Figured since I am quarantined better learn something new. Yes they were connected to the K-Line Cruise board in the tender and the Mars board in the engine. Took pictures and already removed the existing boards and got Cruise Commander and railsounds and speaker mounted. Need to get me a fan driven MTH smoke unit too to replace the piston driven smoke unit. Nothing like a difficult one for my first time. I do have lots of soldering experience though just never worked on one of these.
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