Android auto wall mount screen

hi everybody,
I just had this idea to use an android auto gps screwn carpuride or other device as wall mount as device might be slim cheap and no battery. Can use alarm system cable as 12v power. But they all seems so be limited as per android auto apps. Seems to have some rooting procedures and i am still teying ro figure out before i buy. Does anyone already did this ir thought about it

Tuya rooted also seems a nice alternatives.

Any suggestion would be greatly appreciated

Thanks
Alex