You might try Global Hobby. [link=http://www.globalhobby.com]www.globalhobby.com[/link] . They are the new distributor for Airtronics in the US.

The other option is to make one yourself. I know that sounds a bit off base, but it can be done fairly easily. In fact, the first trainer cord I had I made myself. You need 2 6-pin DIN male plugs and the wire to connect them. The plugs and wire can be purchased at Radio Shack. You can find the pinout schematic for making the cable here. [link]http://www.uoguelph.ca/~antoon/gadgets/airamfm.htm[/link]

Hint: if you have any old computer keyboards with the large round connectors you can use those plugs and cable to make it with. That's what I made my first on from. I run a computer shop so I had the old keyboards laying around and it didn't cost anything for the plugs.

Hope this helps

Ken