Not a solution, just a check, try to keep the answer button on the Gate cable while connected to the extension and listen if sound turns ok.Thanks for that. The audio still "worked" but there was basically no vocals or bass. I'll see if I can get an adapter...or maybe just buy another pair of gates with the mic-less cable!
You'll need a TRRS extension cable or a non mic cable for the Gate, being so cheap you can certainly get another pair with standard cable, otherwise you can go still cheaper with this KBEAR cable
it is cheap and reasonably soft, and on top not micrpphonic, really all I ask for an iem cable.

