I have a Garmin VHF 200 with a bad mic. It doesn't appear these mics are available anywhere and the 210 mic is not compatible. My first choice is to replace the mic if possible but if not, I would want to replace the radio with something equivalent which looks like the 110 or the 210. It appears the 210 has a lot of features I would probably never use so I'm thinking to save the money and get the 110. I want to make sure the radio is compatible with all the Garmin electronics, NMEA2000 network, etc.. I also want to make sure it is a direct swap with the 200 so I don't get involved with changing mounts, bezels, cutting, etc. Can someone give me some advice, please?