Well guys I figured out how to make one which I did. However the units I bought off Ebay were defective. So I'm getting my full refund and just gonna buy a newer unit to use. Thanks Guys and Safe Flying...

I have a Narco mark12a i also have the power/modge unit however I don't have the cable to run from the two. I thought about trying to make one I have the manual but I'de rather have the actual cable. Does anyone have one they want to sell? If I can't find one how hard do you thing it would be to make one and has anyone done this? Thanks