where to buy navigation box for 57035

Does anyone know if there is an Android navigation box build for Toyota touch 57035 (Panasonic)? I have already asked Car-solution and Lsailt - I found them over the web as producers of android boxes but they don't have a solution for my 2014 Prius (Europe). There is a map/nav button but when pressed on it only shows a message that "system not installed" (similar with Voice button on the steering wheel which gives me a message that "Voice recognition not available"). I assume that my system doesn't have a Harman extension box but instead of buying that one, and after paying Toyota for map updates I really like the idea of having an Android with some free map app. Replacing the whole HU is for some other topic.

Thanks.
Dejan