I just tried that and it doesn't workOriginally Posted by pippolippi
I connected just pins 15 (gnd) and 13 (edit: 14 actually, anyway I tried both) to the serial port and got nothing at all while switching on the HU. The led on the serial adapter (which indicates reception or transmission) stays forever lit. The serial adapter still works and I hope I didn't fry the HU.
In case anyone is interested, attached is the quick hack I wrote (in python) to test, but since the connection didn't work I couldn't really see if it works.
It needs a python interpreter (obviously) and pyserial.
(the forum doesn't accept .py files, so I added a .txt to the extension)