2016 Chrysler Town and Country RHB

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Draiter
  • Draiter
  • Posts: 2
  • Joined: Sat Jul 12, 2025 10:27 pm

2016 Chrysler Town and Country RHB

Thu Jul 17, 2025 1:06 am

Hey everyone.
First post here
I have an RHB radio in my T&C.
I was able to add the US 2026.10 map using gmapsupp.img
I then named the Canada and Mexico map gmapsupp1.img
The US map flashed fine, but the canadian map wouldn't flash. I then changed the Canada map to gmapsupp.img and it doesn't detect it as a supplimental map.
I have the file structure e:\garmin\gmapsupp.img on a fat32 formated usb
Can anyone please help me? Right now it appears as tho the original map is gone... I have no canadian navigation.
Thanks
 
GarminNuvi
  • GarminNuvi
  • Posts: 2407
  • Joined: Tue May 16, 2017 5:19 am
  • Location: On the move

Re: 2016 Chrysler Town and Country RHB

Thu Jul 17, 2025 3:53 am

Welcome to the forum, have a look in your garmindevice.xml there might not be an option for a second supplemental map, only gmapsupp.img and gmapprom.img.
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<Name>PreProgrammedMaps</Name>
<File></Specification>
<Location>
<Path>Garmin</Path>
<BaseName>gmapprom</BaseName>
<FileExtension>img</FileExtension>
<Extensions>
<dtlx:DataTypeLocationExtension>
<dtlx:ExternalPath>Garmin//</dtlx:ExternalPath>
</dtlx:DataTypeLocationExtension>
</Extensions>
</Location>
<TransferDirection>InputOutput</TransferDirection>
</File>
</DataType>
<DataType>
<Name>SupplementalMaps</Name>
<File>
<Specification>
<Identifier>IMG</Identifier>
</Specification>
<Location>
<Path>Garmin/</Path>
<BaseName>gmapsupp</BaseName>
<FileExtension>img</FileExtension>
<Extensions>
<dtlx:DataTypeLocationExtension>
<dtlx:ExternalPath>Garmin//</dtlx:ExternalPath>
</dtlx:DataTypeLocationExtension>
</Extensions>
</Location>
 
Draiter
  • Draiter
  • Posts: 2
  • Joined: Sat Jul 12, 2025 10:27 pm

Re: 2016 Chrysler Town and Country RHB

Thu Jul 17, 2025 4:17 pm

Hey, thanks for reply.
I searched through the garmindevice.xml and there is no mention of supplemental maps only base maps... but the system picks up the gmapsupp.img file.
Any ideas?
Last edited by GarminNuvi on Thu Jul 17, 2025 7:00 pm, edited 1 time in total.
Reason: removed quote
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