upgrade base radio to support rear camera - radio options

Hey so i did a bit of research now. I want to upgrade the stock 518c1 radio in my prius. Its the monochrome LCD. Goal is primarily for a backup camera, but satnav cant hurt to have.

There appear to be three options that are from other prius C models (I am omitting the ones like camry, regular prius, highlander, etc that may or may not fit. Trying to stay as model correct as possible)

First off, the connections that are in my car are most likely this:



The possible radios to purchase are:
100023 - As you can see by the rear shot, it has a GPS module at the bottom and associated antenna ports. I learned this from research.




100505 - NO gps module apparent. Fronts nearly identical.



Question, does the 100505 model have GPS nav? all the ebay pics are missing the satnav module on this 100505. i looked at at least 6 of them.
Surely someone out there has a 100505 in their car and can provide the answer here.

The other question is that the 100505 does not appear to have the backup cam connector, which i believe to be the most upper left connector on the 100023 rear picture. But please correct me if i am wrong. Does the 100505 then not support a backup cam? or did they switch it to the rearview mirror like lexus does on later model C's? and whats with those two connectors that i thought were for the GPS? between the USB and speakers.

100872 - 2018+ Prius c radio. Has a stanav module by the looks of it, but some of the connectors are weird looking now.



Does anyone have a labelled picture with ALL the connections labelled? Im sure that will make the most sense. I saw one on some forums somewhere but neglected to save it

EDIT: found one that is the video connector, g79. but only one radio above looks to have it, the 100023....

 

i think you are correct leadfoot. I was able to see my friends prius C which is a 2016. In canada, it has the model number on the face, 100628.

So there are seemingly more and more model numbers the more i look! I guess i should just pick one, take the plunge and try it.

Regarding aftermarket, the main thing with that is i am trying to keep it stock as possible. I want tactile controls, not a big tablet like i see a lot of newer head units being. Plus i dont have to do any hacks and it will look correct in the car.

I'd be opting for a stock 5v camera as well so i dont have to screw with taking power from a reverse light or something.. Too bad all the wrecking yards around me closed down.. its a real shame.

i will keep the thread updated if i do decide to get one and it works out.