no, no specific gauge wire, anything you have on hand would work. better to use a regular wire with insulation than a bare wire, that way you don't accidentally get a short.
- cut wire to length
- remove little bit of insulation from the ends
- tin the ends of the wire with solder
- put wire in place and solder to desired pins/pads
you could pull apart an old usb cable or network cable if you don't have wire laying around. (probably be 24-30ga which would be fine)