Note that while the pins don't match, if you're willing to get a bit creative you can make any TSSR jack work - you just need to solder three wires from the Tip, Ring 2, and sleeve pins on the jack to one of the L signal, plug detect and ground pads respectively on the board and you should be good to go. I did this with a TRRS breakout board from Amazon, a number of resellers have them (sparkfun, adafruit), glued the breakout board to the side of the battery case, fastened down the wires and it works a treat.