Hello. I found the topic on the network that you can plug in an analog signal through capacitors (10uF) under the processor to a Ford radio. The signals are supposedly switched from the automatic microcontroller, which is on the main board (potential difference?). When the sound is not output from the aux, the sound from the radio station appears and vice versa. Apparently, the signals do not overlap, I wonder if this is not a myth, and a colleague from the east did not write about something. Uncle Google itself doesn't explain much about that either.
I would ask for help wiser heads
I would ask for help wiser heads
Yes, I know there is a BT module in the video, but for it to work enough power supply and analog signal, so ordinary AUX works on the same principle. Twice you can see that the pause is pressed and after a while the music begins to play (presumably from a radio station). 