I recently purchased another D3 for my other car and this unit came with a different NAV disc than my other D3. They both say ver 1.0 but as you can see from the picture one says for D3 and N4 and the other says just D3. Anyone know wtf the diff is or why they aren't the same disc?

Same thing. D3 came out months before the N4 so I assume they just saved money by using the same disk in both

the one on the left has more map coverage of canada, and less of alaska