So, I just bought a 07 G35 S with nav & I've noticed that the software is likely is old as the car....

I was kind of annoyed to find that the software isn't user upgradable and that the dealer has to perform the update. From looking at the forum posts here, it seems that the dealers kinda charge whatever they want to do the work.

I was wondering if a Nissan dealer could do it, if I found them to be cheaper than Infiniti? Anybody try that route?