In my Toyota Corolla e210, I have an Android headunit which seems like it can read and set car information. It reads the Battery Voltage and assigns functions to the steering wheel buttons, so… I guess… it is somehow connected to the can bus.
How can I find the interface the headunit is using to connect to the car Can Bus (meaning Serial/USB/BT) (without taking out the android device obviously ), since I’ d like to connect RealDash to it??
Is there a way from the Android to find this information?