bob:

i just went here:

http://www.mir.com.my/rb/photography...md12basic5.htm

it would seem that you have to use a proprietary Nikon connector for the cable (3 pin configuration) . Perhaps you could swap out the Nikon connector for a 3.5 mm stereo plug instead, then you could make your own cable. Once you get the MD-12 in your possession it is easy to identify the pin operation