Now that i am old and deaf it is difficult for me to hear the high pitched beep on my ST60+ Depth instrument. I have a C90w. What auxiliary horn and cable do I need for the ST60+ and C90w?
Welcome to the Raymarine Forum Kevin,
Unfortunately, Raymarine presently offers not devices which may repeat alarms from ST60/ST60+ instruments. However, alarms generated by the MFD may trigger an external alarm such as Raymarine's E26033 Alarm Horn. Please see the diagram below from Chapter 3.7 Alarm connection of the
C-Series Widescreen MFD Installation Instructions detailing how the alarm will be interfaced to battery (-) and to the alarm leads of the MFD's Power/Data/Video Input Cable.