OK I know I am being a muppet but I'm having a senior moment.
I have a Zumo 550 with Version 8 maps on it. I want to replace with later maps but when I try and install it says not enough space!.
two questions
Can I run maps from an SD Card?
Can i "over write" existing maps with a new set?
If I can, how do I do it??

I have a Zumo 550 with Version 8 maps on it. I want to replace with later maps but when I try and install it says not enough space!.
two questions
Can I run maps from an SD Card?
Can i "over write" existing maps with a new set?
If I can, how do I do it??

