I am curious how MTH added the LED Christmas Light String to the Holiday Engines. Did they add a daughter power board or did they use an existing power pin on their control board? Looking at MTH's webpage and catalogs, none of the engines and train cars with the Holiday lights have a wiring diagram or exploded view for parts to show this.
My asking is that I am interested in doing this to an engine I already have and wonder if I will just need to do a power take off or if there is power on a pin available. It is ok by me to not have a remote function to turn on lights, I can do that via a switch or always have them on.
If MTH is on here, I would consider a kit that would enable me to do this without making it all myself.