updating map files-do old files need to be deleted?

[tomhanaway]

When I load new map files onto my SD cards, will the 4500s automatically identify most recent or do the old map files need to be deleted?

Thanks,
Tom Hanaway

[amekler]

you can just download the new map files and copy them to the sd card. you will be asked to you want to replace files and just select yes to all.
Alan

[tomhanaway]

Thanks Alan.
Tom