Garmin 178 to cobra 55

[Dino]

Does anyone know the correct nmea connection for these sets? I'm a little confused because the garmin has dedicated nmea in and out for a dsc set.
The cobra has a funny little jack with 1 red and 1 black.They say to connect red to nmea positive plotter,black to nmea negative plotter.
I'm sure looking at Garmins wiring diagram that both the dsc nmea's are positive and are wired for a more expensive dsc so it will show info from the dsc on the plotter screen,as they describe nmea in and nmea out and both are showing a little + sign on the diagram.The cheap old cobra probably doesn't do that so heeelp! What wire goes where?

[ashbypower]

Same a the replies on YBW there about right

Brian

[matt h]

have a look at my last post on the subject, its not too bad really, i found the answer by mistake !!!