So this is my idea:
Instead of using 1 HDMI switch i use 2.
Number one will switch between reversecam input and switch 2.
Switch 2 will switch between rasp pi input and oem input.
I can use the gpio outputs (controlled by pibus) to control the switches, like i do at the moment.
The rearcam signal will be converted via AVtoHDMI converter, the oem pic from nav module will be converted by module like GONBES8200 to HDMI.
So i'll make a new pcb layout that will fit into the tv module. Maybe i'll find the blue and the white connector to solder them on the new pcb.
Last edited by vitalic; 05-13-2019 at 10:36 AM.