Thanks rnvinc and BobB ,I'll pull the card and get a 32gb and as nothing seams to really be on the card and I want to be ready for this next year as the wife and I will be in Fla all of April.( st.johns river area)
Note another iota Bob mentioned ... :
You can edit the 4 "P" lines at the bottom of the window and the unit will upload your custom text to be displayed upon unit startup ...
The custom startup text will remain on the unit even after that SD card is removed ...