I managed to do this without soldering. I'm sure the connections aren't quite as strong, but there is no pressure on cables at either end.
I took a 6ft emitter that came with my itach. Cut it in half, stripped the wires and spliced either end to my cat6 cable that runs from my basement to the family room TV. I used electrical tape.
I first tried a keystone jack but for the receiving end for a clean look, but that didn't work (could have been user error).
Works perfectly for me.