I'm currently building an in-car alert system using a Raspberry Pi. My car has an AUX port (3.5mm jack) which I currently use with my phone - to play music.
I wish to be able to play music, and play alerts from the Raspberry Pi through the AUX channel.
As it stands, the phone is connected to the AUX jack via a 3.5mm jack cable. If I was to wire the Pi's audio output into the back of this jack would the two audio signals (phone & pi) be played together or would there be distortion or any other issues?
Appreciate any help here!