My HR-V was advertised as having factory Nav. It doesn't. I spent a considerable amount of time looking at alternatives; purchasing a second hand unit, fitting an aftermarket unit, downloading/purchasing factory software and so on.
Aftermarket didn't appeal as I would lose some functionality. Second hand was a no-go as it seems the head unit is coded to the vehicle. One thing I forgot to look into was what did people on this forum who fitted aftermarket head units do with their Honda unit? If they sold it on, did the new owner have issues getting it to fully work?
In the end I purchased a TomTom. The mount is not only magnetic, which makes removing and installing far easier than conventional mounts, it was also USB-C powered, the same as my mobile., which makes it interchangeable.
I have the TomTom permanently wired to the front 12v socket as it only works with the key in. I routed the USB-C cable up along those thoughtfully provided panel gaps adjacent to the HVAC panel and hide it under a dash cover.
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Oh, and I've just learned that in the UK MkII owners can no longer update their factory Nav post 2023 as the files are too large for the system to cope with.
With my TomTom I get
ahem 'lifetime' free monthly updates, whereas the factory update is £45 a pop.
Brucie Bonus!