Help wanted with adding Bluetooth to OEM monsoon radio
I want to add Bluetooth to the OEM monsoon radio I have a Bluetooth audio board that I'm planning on hijacking one of the audio inputs to the stock amplifier through the head unit. However, I can't seem to figure out a good place to splice in the digital audio signal. I have two ideas of where it should be possible, however I don't have the knowledge on how either one could be feasibly done.
- Splicing in the audio by tricking the car into thinking there is a CD changer and sending audio in through there
This is my first idea. It's simply just tricking the car into thinking there's a CD changer and feeding in the audio from the Bluetooth board through the audio inputs that are already there. However, I do not know how to communicate with the head unit to fake the presence of the CD changer.
- Removing the cassette tape drive and splicing in the audio after the low level preamp and digital conversion for the tape head
This one seems like it might work but I have no idea where on the board the conversion from analog to digital signal happens and also if it is just two channels because if it is multiple channels I'd have to condense into two. It might be more than it's worth in effort.
If any pictures are needed anything specific I will try my best to reply as quickly as possible