Would it be possible to intercept a CANBus command and send a particular command to my phone?
eg. Press the next button on my steering wheel and it send the BT AVRCP command to my phone?
Should be posible ;)
In my car i have to use the analog inputs to read the steering wheel buttons, but you're may be over CAN. I don't know if AVRCP works over Bluetooth 4.0. Bluetooth 4.0 is not reverse compatible with 3.0, it's entirely different.