/3/ - 3DCG

Ay dudes, this the Blender General? Title says fuck all.

Anyway, I'm using a bunch of particle systems in my scene to generate far away car traffic. In my head I figured I'd whip up a particle system for a lane, then duplicate them around the scene as needed.
The thing is, I'm lazy and I don't want to set a random seed for each particle system (since there's going to probably be a fuckton). Is there some way I can use a driver to generate a random number in the particle system's seed every time I duplicate it? I searched around and figured "noise.noise((x,y,z))" would work, but on giving it a go, it seems to need an object manually specified in the driver to reference, and I can't just have it use the self xyz. So using that would be more work than just clicking and dragging the seed value a bit.
So yeah, any help? I'm not looking to change the seed every frame, just one and done so I can spam the system around the scene and have the traffic be shit out of the system in a different fashion.