Thanks for the info - I just ordered it from Anchor Express.
From the wiring
document it looks like I'll just use NMEA cable port from my chartplotter
to wire it as described in the document.
The only thing I don't like about this (apart from having to do wiring through my steering
pedestal) is that it means my chartplotter is the middleman, and if it fails for some reason I'll lose GPS
signal to the Matrix as well. I have a usb puck
gps, so maybe I could use that as backup.
I take it I can use any 28 awg 5 conductor cable rather than the Raymarine NMEA cable? At $52 for 3 feet foot it will be very expensive to set this up, the radio is around 9 feet from the chartplotter.