|The connector can be easily opened |
by sliding a thin blade on the side
Once open, you can see a small PCB on which the switch and male connector is attached:
Slide the PCB out of the casing. Be careful not to lose the plastic cap on the switch ;-)
Use a multimeter to figure which wire should be corrected to which pin of your 3.5mm socket.
Unsolder the wires and (if you feel the need) shorten the PCB a little, you can safely at a milimeter or two with cutting pliers.
Connect (solder) the female jack to the PCB (I used some very short wire)
Enlarge the hole for the cable to fit your 3.5mm female jackn... And put everything back in position.
you can now use your Bose QC-15 with any standard 3.5mm cable.