RE: 9ZH WC, EVO 12 or Multiplex mc4000?
The 4000 does not have shift fitted by the factory, but the USA service chap Ernie Pritchard has been fitting a shift switch to the Multiplex Profi radios when asked. Bear in mind that PCM is specific to each brand, so any Futaba PCM rx that you have will not work with a Multiplex tx or any other brand tx either.
H.