Help? sound file assingment driving me to drink!

Ok, I have a really nice lil' sound bite of the aftermath of an underwater explosion. I'm trying to assign it in my DC noise mod, but it's driving me nuts.

First off it looks as if I'll need two of the same thing: one for hearing it 'up close and personal' and a second one for hearing it via the hydrophones. Although that might only be a matter of internal volume more than anything else (I hope!)

But I can't get the %^$# thing to play at all. And I don't understand why. Maybe a wiser, more experienced head can help me.

In the library I have a file called DC_noise_bubbles.dat. This is the file that generates the bubble cloud resulting from an exploding DC (basically a modified Bold1). I also have a file called dc_noise_1.dsd, which is the file that (should) direct what sounds to play when the bubble cloud is generated. In the Sound folder I have a file called DC noise.wav, which is the actual sound file.

For the properties of the SoundSource of dc_noise_1.dsd I have the name set as "DC_noise_bubbles.DC noise". If I'm interpreting the existing .dsd files correctly, the part preceding the period is the dat file the sound is associated with, and the part following after is the name of the sound file itself. But it isn't working; there is no sound being played when the bubble cloud forms.

I've no idea what I'm doing wrong, or how to fix it. Little help, please?