So I've been snooping around inside the speaker and found the audio inputs for the driver(s). would I be correct in assuming I could push audio from the RCA OUTPUT in the back of the car stereo into the Left and Right channels of the driver? As there are two drivers on this board I guess ill have to follow the traces to where they meet up and inject my audio at that point, would this magic spot be on the DAC?
Also, any information on the ADC + DAC would be helpful. I'm guessing this is a bridge between the Bluetooth module and the audio driver?
Picture is attached
Just after posting this image (wow taking a picture really help with enlarging the detail!) I've noticed that the left and right inputs from the driver do in fact run through the block of capacitors and resistors in the middle straight through to the DAC's analog output pins