[Shini Quiet]

There's a rattle in my dashboard. When moving it's not noticeable. Nor can it be heard if the Cruiser is in park. But at a light or stop sign, it's truely annoying. My initial guess is that it has to do with the fan. Cranking the fan up the whole way drowns out the rattle. So does a loud radio, for that matter. Outside of those alternatives, I wonder if there is anything I might be able to doshort of taking the dashboard apart to see if it is indeed the fan.
Anybody had something like this or an easy idea that I can try?

Thanks