The three wires coming out of the cab are: common, rear headlight, and cab light (NW2 shown in photo, but they are identical).

Self-tapping screw for contact strip.

The method shown for how to disassemble the trucks of the SHS F3 and NW2 by Peter Vanvliet will not work for this SW8 locomotive.
These are the instructions for installing the Soundtraxx Tsunami (first-generation) into this locomotive. The article was written by Bill Clark and made available by Don Thompson. Tsunami Installation Guide
Provided by Don Thompson, these are the CV settings with which the models were configured: Tsunami Configuration Variables (CV) Settings.
The bell sprue that S-Helper Service sold to Dave's Twains & Twacks, if you are looking for one of these.

Shane Lambert reported that he was able to solve a cracked universal gear issue by replacing it with this NWSL part: part #488-6
