[Elecraft] Using Heil ICM mic with K2

[Paul at N4LCD.com]

Barry McWilliams wrote:
>Brian - you asked about modifying the Heil ICM microphone for use 
>with the K2 so it'scompatible with the Elecraft MH2 microphone.
>
>You need to make changes to the ICM plug.  There are only 4 
>connections in the plug. You only need to change two of them.
>
>1) The audio on pins 1 and 7 do NOT need to be changed.
>
>2) The PTT needs to be moved
>    from pin 5 -> to -> pin 2 and
>    from pin ->6 to -> pin 8

Is the Elecraft MH2 actually the Heil iCM with these plug wiring differences?