Summary

Made a mount for the Full TBS crossfire longrange module
3.5mm jackplug into headtracker port.

used the wire/connector from an older JR module for crossfire.
TBS Connector type is 3 pin Molex Clik-mate 1.5mm pitch
Use some double side tape to stick it on the TBS unit.
2x 12mm M2 as replacement screws or selftapping m2.

3.5mm jack PCB mount.
To save the original wire fro. The JR module box I used a 6P housing and counter connector micro JST 1.25mm pitch to connect it to the 3.5mm jack without cutting the cable.

You only need ground and PPM signal.
No power needed.
Stereo plug on front outer (ground and rear last ring (tip) for PPM