I have the Z5300 speaker system at my office, my alienware laptop that originally came with the speakers had a pcmia (*spelling*) sound card and it had plug-in jacks for the black, green and yellow wires and things worked awesome.!
The laptop got replaced due to troubles (alienware sent returned a newer model) and my new one has a mini pc card slot. I need to find an adaptor that will integrate my current laptop to the 3 speaker wires ... : black, green and yellow.
Any help or links to a product online would be greatly appreciated. I called tech support and was told to bring everything to radio shack. I'd like to see if something online is available to purchase if possilbe..