You can buy the LEMO from Bose. It comes as an entire unit, including the mic. Remove two screws on the bottom of the microphone fitting and take it off, which includes the cable to the current headset jacks, then just reinstall the two screws through your new LEMO/mic unit and you're done. Costs around $200 I think. OR.... You can buy the GA twin plug to LEMO adapter from Sportys for 90 bucks. So you will retain the ability to use twin plugs if you need to.