When listening to the audio, I am getting the audio transmission of a local radio station in my area. Is this a known issue that has a fix for it?
I was able to significantly reduce the Radio Frequency Interference (RFI) I was getting with the mic after reviewing the link below. The mic was previously mounted to the aluminum siding of the house. Apparently, aluminum can act as a receiving antenna for radio signals and the circuits inside your metal covered mic are detecting those signals when the mic is in direct contact with the aluminum siding. See link below for further details.
How does Radio Frequency Interference (RFI) occur?