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2013 A28 Garmin 640 upgrade
Posted: Thu Feb 26, 2026 4:11 pm
by CobaltA28
Just purchased my 2013 A28. Looking to see if anyone as upgraded to newer GPS Fishfinder.
Re: 2013 A28 Garmin 640 upgrade
Posted: Sat Feb 28, 2026 7:04 am
by AsLan7
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So glad you found us CA28.
I have not had any experience with this but others on the forum may chime in shortly.
Welcome aboard mate.
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Re: 2013 A28 Garmin 640 upgrade
Posted: Sun Mar 01, 2026 2:58 pm
by jhnmdahl
Looks like that was probably flush-mounted with Garmin's bracket
https://www.garmin.com/en-AU/p/51792/ but they don't provide a printable flush mount template that I can find. Best bet is probably to remove the current 640 unit (using the instructions in the link above if needed) and find your hole size, and find a current model that's big enough to fill the hole but not so big that it won't fit in the dash space available.
The smallest GPSMAP unit from Garmin is now a 7", which may be too large - see the 743, for example -
https://www.garmin.com/en-US/p/799210/
Something more similar in size might be an Echomap 5" (or maybe 6") screen model, like the UHD2 - see this, for example -
https://www.garmin.com/en-US/p/796385/
John
Re: 2013 A28 Garmin 640 upgrade
Posted: Mon Mar 02, 2026 8:22 pm
by mdadgar
I bet Technografix could easily build a custom dash panel for you to fit whatever unit you choose (they were the OEM panel supplier, IIRC).
Re: 2013 A28 Garmin 640 upgrade
Posted: Tue Mar 03, 2026 8:40 pm
by CobaltA28
Thanks guys, Echomap uhd6sv looks like it will go. Appreciate the intel on oem dash manufacturers. Boat is coming grom one great lake to another. Also there are templates on Garmin website.
Re: 2013 A28 Garmin 640 upgrade
Posted: Thu Mar 05, 2026 12:24 pm
by jhnmdahl
I had a different one of Cobalt's original dash panel manufacturers make a new panel to accommodate a rectangular stereo remote instead of the round Sony one from the factory, and it was well worth making it look like a factory-quality install. Please keep us posted on how it goes!
Re: 2013 A28 Garmin 640 upgrade
Posted: Fri Mar 13, 2026 3:09 pm
by CobaltA28
I definetly will. Looks like it will be the EchoMap UHD2 6sv with the Tecnografic dask panel to fit.
Re: 2013 A28 Garmin 640 upgrade
Posted: Thu May 14, 2026 6:31 pm
by milkerson10
I did a whole install on my 2012 A28 last year with the
743 garmin glass dash
If you need any help just text or call me 417-288-8346, can send you some pictures also
Re: 2013 A28 Garmin 640 upgrade
Posted: Wed May 20, 2026 6:58 pm
by mdadgar
milkerson10 wrote: Thu May 14, 2026 6:31 pm
I did a whole install on my 2012 A28 last year with the
743 garmin glass dash
If you need any help just text or call me 417-288-8346, can send you some pictures also
Can you post some pics here? I would love to see that.