As I understand it you are required to have the annunciation within the normal visual scan of the pilot.
If you have the Garnin CDI most of this is done, as you have an aircraft that is not very wide as long as the 430W is in the centre Avionic stack that would also meet the visual scan requirement it is only if your Avionic stack has migrated to the far right hand side of the panel will you require extra annunciation.