Polaris DSC To Garmin GPSMAP 176

[Henry Z]

Hope someone can help me,I am trying to wire my polaris dsc to my garmin 176 gps but don't understand how the wiring works.My garmin has two wires a white for data in and brown for data out and the polaris has a green for data in,how would you wire this up.What wires hook where.I am not that smart when it comes to wiring things like this anyways so if anybody can help me it will be great.I am planning to wiring this up sometime this week so if anyone knows please free to email me or post it.

[jwalker]

Must be brown to green then. Plus you need the connect the grounds together. (The radio may have a floating ground so you need to connect them to be sure to complete the circuit.)

[Henry Z]

Thanks Jw, but what about white data in from the gps where does that wire get hook up too.

[jwalker]

If you have no input to the gps, just tie it off.

[Henry Z]

Thanks alot Jw I will try it and see how it works.
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Henry Z

[Erin]

As JW says, you need to connect the black negative/ground leads from both together. It's well worth doing a direct connection on this between the two units and not relying on the fact that they probably both share a common ground on the battery. I had trouble once with getting a reliable signal through and found the solution to be a dedicated ground/negative link between GPS and Autopilot.

[Henry Z]

Thanks Erin for your help too and I will make sure I do that.

[Cookee]

Some VHF's have a NMEA output so that the position of the station transmitting the emergancy can be shown on the GPS - you would wire up the white wire on the GPS to that one or just leave it as JW says if your VHF doesn't have an output.

[Henry Z]

I am trying to wire up my horn for my boat.I wired in a fuse block and so it will be wire into that.I also want have a switch for the horn and I am not sure as to how to go about wiring it up.Is there anyone out there that has done this before and can anyone help with this.

[jwalker]

Take a cable from a fuse and connect it to one pole of a push for on switch. From the second pole of the switch, take a cable to the positive connector of the horn. From the other horn connector, take a return cable to the negative supply.

Horns consume a fair amount of current. Make sure your switch is of a satisfactory rating. You wouldn't want the contacts to stick together.