Replacing stock radio

I doubt you can find an aftermarket unit that supports the car's network and Prius data and configurations. The v3 and v5 units have integrated gps and are not phone based. There is a limited ability to get some predefined data from an Enture app. They have an extra module hanging off the bottom of the head unit for the navigation.They require a gps antenna that fits under the dash which "might" be there based on an "add-on" navigation kit they sold (see attached). I would check out that kit at a dealer and see if it could be connected to your existing head unit and determine if the gps antenna was factory installed in a v2. Don't expect the dealer to automatically know about the kit or how it installs.

 

Its hard to say if that part includes the extension box. Note on the pic below how some of the "57011" radios (part 86140-47020) have the extension box on them and some don't. The left pic is from a current ebay ad for part 86140-47020 while the right side in also a 86140-47020 but it includes the extension box. Your link does not show the back of the head unit.

Be aware that it might be necessary to have the head unit added to the network if it is from another vin car. The instructions above assume you are adding an extension box kit to an existing radio already in the car. Also, while the instructions imply a GPS cable is in the car, it could be that certain trim levels are ready for gps and others are not. I would consider going to the Toyota dealer and ask if yours is upgradable, and ask the parts department if yours has a gps antenna. They look up your car by vin and can tell what it has or needs in most cases. This link is a current ebay ad for part 86140-47020 which shows the extension box. Radio Prius V VIN Eu 7th And 8th Digit Fits 12-14 PRIUS 86140-47020 | eBay

Finally, if I were buying a used head unit for my car (which does have nav/gps) I would probably try to get the newest one available with the same part number. That way I would most likely get a more recent map database, which by itself can cost hundreds to upgrade.