Hi there and welcome
You will need to use a micro SD card with this
Put a new micro SD card into the device and you can then install the map to the SD card as its going to need this extra room.
Please note it will only support a size up to 8GB which will be more then enough space.
If you would like any additional information or assistance, please do not hesitate to let me know.
Else if you can take a second to rate my service by clicking one of the stars at the top of the screen then submit, that would be greatly appreciated.