The TrafficProvider.xml is only used in Nuvi 1xxx and 37xx series.
Other devices cannot use it.
The ID written above is for the Thailand Map v11
And once again: Thailand Traffic is free, no subscription needed
Following the part of TrafficProvider.xml v2.60
<country name="Thailand" cc="2" fmTuningGrid="World">
<boundary desc="Thailand">
<posn lat="5.0" lon="97.0" />
<posn lat="21.0" lon="97.0" />
<posn lat="21.0" lon="106.0" />
<posn lat="5.0" lon="106.0" />
</boundary>
<provider>
<providerName>Thailand GT</providerName>
<pay>false</pay>
<tuning ltn="10" sid="30" />
</provider>
</country>