Will this still work if the battery is dead?

The gauge has red(+), black(-), and white (signal?)

I have a Garmin 492 GPS. I'm assuming I should connet the NMEA out (blue) to the white wire on the gauge?

Oh, and my speedo came with an extra plug for the antenna that only had a single white wire. So, I was able to rig it without hacking up the harness that goes to the antenna.

Hey we live in chattanooga and I have famiy in atlanta they are always trying to get us to bring the boat we have heard about coctail cove but dont know the ins and outs can you help us please

I just got my antenna back from Livorsi last week and 87 bucks later. What a rip off. I tried to unscrew the cap but thought I would ruin it. Wish I would have seen this thread two weeks ago before I got screwed for a $3.00 battery.

Here is information from Livorsi Marine.

If using your own GPS unit (Ex: Garmin, Lawrence), make sure you have connected the "output" to white pigtail in back of gauge. Make sure unit is set up to communicate with speedometer. (NMEA 0183 Version 2.0-3.01, Baud rate-4800, transmitted sentence-GPRMC)

So remind me, if GPS speedo works fine but recall function does not, what should I look for as possible problems ?

Great! What about the red and black going to the gauge? I guess they don't need to be connected?

The red and black need to be conencted to 12v and ground. Be sure to use the same gound for the GPS and Speedo.

Kelly O

Here is a link to another thread with GPS info. In the next to the last post, Velocity Vector has several good links with hook ups and troubleshooting.

http://www.offshoreonly.com/forums/g...dometer-2.html

Thanks! I rigged mine up last night and it appears to be working. At least the needle is no longer staying at 9 o'clock. It settles to zero when I turn the GPS on. I won't know for sure until I run the boat.

At first it did not work, I had to go into the GPS setup and change the default "Garmin Data" to "NMEA in and Out"

I don't think I'm using the same ground for both GPS and Speedo though. I change that next chance I get.

I've got an Autometer GPS speedo, that goes thru it's normal power-up routine, then swings back to zero, THEN rises to about 4-5 mph and sits there. It seems to work just fine going down the river, just sitting still it reads 3-5 mph?
Thanks,
Dean