I have a sample of nuvi 150 garmindevice.xml so I could check:
<Model><PartNumber>006-B1595-00</PartNumber><SoftwareVersion>720</SoftwareVersion><Description>nüvi 150</Description>.........
<TransferDirection>InputOutput</TransferDirection></File></DataType>-<DataType><Name>UnicodeMaps</Name>-<File>-<Specification>
<Identifier>IMG</Identifier></Specification>-<Location><Path>Map</Path><FileExtension>img</FileExtension></Location>
<TransferDirection>InputOutput</TransferDirection></File>
We can add it in list