Re: User request

Posted by bruzas on Jan 22, 2017; 7:42pm
URL: http://bluesaab-forum.90.s1.nabble.com/Re-User-request-tp952p954.html

As I understand, the bluetooth module receives "something" from the phone, then processes it and outputs "something2" to the CDC line going to the IHU. What I was thinking - maybe somehow interrupt that "something2" (for the sake of the argument - just cut power to the BT module), and feed that "something2" from USB, aux etc.

Of course to receive "something2" from a USB stick would require data processing with additional hardware, but hey You guys hacked in to the CAN line and can feed the whole system with what you want the system to see, whats some data processing compared to that... :)) And as you already mentioned - 100% that such thing exists pre-made, one just needs to know what to look for.

What is the "something2", that the module is feeding to the IHU? I don't believe it's an ordinary high or low analogue signal, nor the balanced one, that SAAB uses to send audio from IHU to the amplifier.