I did the earbud mod and it works great, now I need a way to use the boom microphone on my J&M helmet headset for the G4 also. That way I can take the boom mic off the G4 and just have one microphone for two radios. You would only need a mono jack for the microphone connection. If I knew what kind of connectors J&M uses that connect the microphone to the main wire harness I could make a Y splitter and route the mic audio to the G4 and the J&M harness. Could also do the same for the J&M helmet speakers and have them do double duty also..