I am planning to this soon on this car, only way i know to get the video input to the existing screen is with connecting it to the AMI interface.
If you dont have AMI interface you first you need to get AMi interface, this the most expensive cable, there is one for around 50$ on aliexpress.
Then you have to connect AMI to RCA cabel, on which you connect HDMI to RCA converter unit, then after this you have your HDMI input port for the Rpi.
The problem I am facing now is how to control Openauto this way, cause the screen in B8 is not touch screen, it is too far from driver anyway. Having a small touchpad seems like only way but not practical.
So I have question for OpenAuto team, I saw there is a way to control everything with the knob and steering wheel controls? How is this accomplished?
*EDIT
I missed completely that Rpi 3 and older ones have RCA video output already, so no need for HDMI to RCA converter which is another element that would need power and probably weaken the signal. Rpi 3 has the output from the 3.5mm jack port.
If you dont have AMI interface you first you need to get AMi interface, this the most expensive cable, there is one for around 50$ on aliexpress.
Then you have to connect AMI to RCA cabel, on which you connect HDMI to RCA converter unit, then after this you have your HDMI input port for the Rpi.
The problem I am facing now is how to control Openauto this way, cause the screen in B8 is not touch screen, it is too far from driver anyway. Having a small touchpad seems like only way but not practical.
So I have question for OpenAuto team, I saw there is a way to control everything with the knob and steering wheel controls? How is this accomplished?
*EDIT
I missed completely that Rpi 3 and older ones have RCA video output already, so no need for HDMI to RCA converter which is another element that would need power and probably weaken the signal. Rpi 3 has the output from the 3.5mm jack port.