I acquired the IC-7410, when it first came out. It came with the HM-36 mic, BUT think it had some problems ?
Found information on the web, by AB5N; he had a web site that kinda fixed it for the IC-7000 microphone.. He will also perform the fix for you. He discusses it at http://www.eham.net/reviews/detail/6580
Also check out his site http://www.7000mic.com
Think he said he had a "...type #2 element..." audio level fix.
Bob Nagy, AB5N; 121 Rainwood Terrace; Pearcy, AR 71964 was his address, then. I called him on telephone to make arrangements.
Sorry, was about 2-years ago & I lost most of my paperwork on it. I also kept my SM-20 base mic from my IC-736 (but never use it, no room).
I only use my HM-36, at times; into digital.