Sound install in 4 8 2 light mountian

[bobperr]

I am trying to install a TCS sound decoder in a 4 8 2 light mountain, but I don't know which wire is what or where it should be soldered to the motherboard. Is there a diagram available? any help would be really appreciated. Thanks

[Len]

This is what's on the TCS site for installing a decoder in the light mountain:
https://drupal.tcsdcc.com/installation/ho-scale/1243

Len

[bobperr]

Thank you, Len, my problem is the circuit board has been removed and there are just a bunch of loose wires now. I managed to figure out what two of them are, but I don't know the rest of them. on the TCS website they show a wow sound installation but it's not clear where a couple of the wires go.       

[trainman203]

This is why I pay people to do that kind of stuff.