I am going to have to attempt to replicate what you have there, Mark... lol - I've been trying to "break" that for the PhotoTarget for a while, and all I end up doing is breaking other things instead... lol
But you do have the idea there. The dat file is "Parent" linked to in the dsd file. Open a similar known-good ship, and copy the way they link in it. You of course don't want to copy the link addresses, just the example, such as the dat file Aud nodes to the dsd files links to the SH.sdl file. The Label and ShipSound both link to the dat's main ship node, while the SoundSource nodes will link to various "Aud_" nodes, with usually 4 going to the engine, another to the Aud wake(s) and one to the Aud prop. Other boats/ships will have more. A very easy place to get lost, dazed and confused...
