Wiring gps to radio and vessel view

Coz

Active Member
Oct 9, 2018
443
Boat Info
2008 Sundancer 310
Engines
Merc Mag 350 DTS w/Bravo III
I took my c80 mfd out. My gps was connected to the c80 and the c80 to vessel view. Now I want to connect the gps directly to the radio and vessel view. The wiring diagram shows a Nmea out +, but no -. The vhf and vessel view both have Nmea in + and -.

So which wire on the gps connects to the nmea - ?

80643C8D-12FA-483C-BF44-49B054B3F172.png
 
My radio has these instructions. If this doesn’t fix it, then post model of GPS and radio, I should be able to figure it out.

90DF6B38-27D4-42D8-9B48-4226C89F6913.jpeg
 
Apparently they use the 12v negative as the - for the nmea. Will find out this wknd
 
But I think leave the radio’s NMEA output - on your radio disconnected/open. But connect the input - to the 12v - . Is that the plan?
 
Yes. I don’t use the radio nmea output anyhow
 

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