Still hearing many hams on the FM voice repeater with the old Yaesu WIRES mode unintentionally enabled. (Causes a 2-3 second muting of the voice at the beginning of the transmission with a DTMF burst)
Here is an article from Martin, N6VI, on how to disable WIRES on a Yaesu FT type radio, so that it will NOT work (or interfere) even if turned on.
http://www.lafdacs.org/pdf_files/-WIRES%20Disable%20on%20FT%20Radios.pdf