Vortex Sound Research

I've made a good few patches for the TX81z and don't want to have to write down all the parameters on paper-it has an 8 pin cassette female port on the back but I can't seem to find any cables that fit the 8 pin din to 3.5mm descriptor (or anything of the equivalent). Does anybody have any recommendations about this? Writing down parameters isn't terrible but I'd be willing to spend $20 or so to be able to load them from a .wav file.