Need help updating Garmin data card

[RV-Rob]

I was wondering if any fellow RV guys out there could help me get my database card updated for my garmin 300. Im not real computer literate and could really use the help. I am in the Greenville SC area if that helps. Thanks

[CPSONE]

Hi,
You'll need a data card reader writer like this one from Jeppesen to put the data on your card.
http://jeppdirect.jeppesen.com/produ...=prod410002_ca
Once you have the reader writer you can get the data.
Look at this link sing in and see what's available for your GPS.
https://fly.garmin.com/fly-garmin/aircraft/

Jeppesen sells the data as well but you might be able to get more coverage for what you want from Garmin.(even though it's Jeppesen Nav Data). Check them both out and decide.
Jeppesen Nav Data can be purchased here.
http://jeppdirect.jeppesen.com/legal...s-overview.jsp
Call them to make sure you're going to get what you want. Their website is not great.

Alternatively most avionics shop can do the update for you as well but you'll pay lots more I'm sure.