I bought the IFly700 USB to serial cable for a single purpose. To hook up the GPS to my TruTrak autopilot. In order to use the cable I would have had to buy a female 9 pin plug or cut the attached 9 pin male plug that came with the cable. As space is at a premium in my S-18, I choose to cut off the 9 pin plug and use the one wire I needed. The #3 wire for NMEA data. Is it possible to get a cable that has the converter in the USB plug and just have bare wires on the other end ? I believe I have seen such a USB/converter/bare wire plug. This way you can shorten the wire to fit your panel. With the current plug from the IFly store this is not possible.
I did get the USB converter plug (modified) from IFly to work with my TruTrak AP, but a shorter bare wire cable would be nice.