i used cat5 which is hte same as phone line but a few more wires, works great, you buy the .187 FEMALE quick disconnects, buy the shielded ones from happs if you can, they are way nicer and fit over hte pin on hte switch much bette rthan the radio shack brand.
cat5 is nice cause you can strip the ends and leave the body of hte wire still shielded for nice clean wiring