Newbie question - Maps for Kenwood KNA-G510

Hi,

I am new to the site and tried searching but couldn't figure things out.

I have a Kenwood in-dash deck with add-on nav unit (Garmin KNA-G510)

I wish to update my maps to the latest version.

My unit uses an SD Card with the volume name: 0101096600

Inside there are two directories:

EULA (empty)

GARMIN - with: GMAPSUPP.IMG and GMAPSUPP.UNL


What do I need to get and do in order to update this to the latest version of North American Maps?


(Sorry for the new guy question... Just wasn't clear to me from the forums as what to do)


Thanks,

D.