@Tan The Fuel Gallons (GPH) comes from the JPI Fuel Transducer, I don't believe it has anything to do with any inputs from the GPS.
My shop tried several iterations on JPI and GPS and in now works for me. Here is what I have that works:
JPI - GPS Format: #6: GNS 430/530-WP
Garmin GNX-375 -...
@WannFly So what did you finally wind up doing to use your GPS, Analog NAV/COM with the G5 HSI/DG, GAD29, and the Century Autopilot w/ Radio Coupler.
I am trying to use a GNX-375 RNAV GPS (Digital) and MX170B (NAV/COM) with and G5 DG/HSI and my Century IIB. Installer is telling me to get a...
@NealRomeoGolf
So your Nav2 an Analog radio and you are able to get both the Digital (GPS) and Analog (NAV2) working with the Autopilot? And the toggle switches which source (NAV1=GPS, or NAV2 - KX155) control the Autopilot?
Any idea what the connections are behind the panel - my guy says...
Gents - Thanks for the reply.
@AA5Bman
If you never had an HSI in the plane prior, chances are you had the 1C388M, I believe the -2 was for Century HSI, and -3 for King HSI. All the RCs look the same.
The Garmin GNX-375 is a WAAS RNAV GPS - just without NAV/COM. It was an option I went for...
@AA5Bman, @NealRomeoGolf - thanks for the such a thorough write up. One thing that I lost track of was the radio coupler you finally used. Did you stay with the original 1C388? and didn't have to upgrade to the 1C388-2 or -3?
My situation is similar but different given you switched to a...