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For those who've already installed a GRT system (in this case Sport EX) with the SafeFly GPS / uAvionix ADS-B solution, how did you wire the interface between the two?
The uAvionix instruction shows a GRT implementation, but has the green, yellow, and blue connections from the combiner to the EFIS asterisked - don't connect the green, the yellow is only connected if you want the SafeFly GPS to feed the EFIS, and the blue wire is required for ADS-B & WX.
The SafeFly book from GRT has the same diagram with no asterisks or footnotes, implying that there's no option there.
Which implementation did you use? Regarding the yellow wire, GRT says you still need two GPS antennae - one for the EFIS and one for the SafeFly, so they're implying that the yellow wire does NOT feed GPS data to the EFIS.
Am I over-thinking this?