twistedtree
Guru
Maybe just Furuno's expectation that other brand radios might not support PGN "whatever" for this function?
-Chris
But even if other's don't support it, why wouldn't they use the defined messages themselves? If they do a proprietary implementation, it's guaranteed to never work with anyone else. If they use the standard messages, then over time one could expect it to start working between vendors as people get their act together.
It seems Furuno either doesn't want to interoperate, or that the standard messages were inadequate to actually make something work properly.
A trace of the N2K bus between the VHF and MFD would be very interesting. Steve?........ I've got the MFD on my Grady, but not the VHF. I've personally never dug into the DSC interaction between devices, but maybe it's time to.....