Noticed Yesterday the Gaffrig GPS did not work in my 353 ...has been fine up til now ...( since June) .....I was running my Garmin GPS up on the dash .....Could there be a conflict between the Garmin GPS and the Gaffrig Unit? .......m

Most likely the battery in the puck (GPS Antenna) went bad.

10-4 ....did not realize there was one ....m

There is a thread on here about hooking the speedo to your GPS. If your speedo needle is settled at about 20 mph, it has no GPS signal, that can be remedied by hooking to the NMEA output from your GPS.

Thanks Ted ..... my GPS is not permant mount (yet). There was no info on the Gaffrig site but there is on Livorsi.com ...

http://www.livorsi.com/catalog/gps_antenna.htm

I might just remove the Analog Speedo and Flush Mount a GPS between the tacts .....m