In reading the Dev info in the config.ini section, there is mention of a notify parameter. It says that a value of 2 will send the song / artist / genre / etc. on the serial port. What format does it do this in. Is this done with a few pulses in certain pins?

I ask because I want to interface it with the information panel in my Saab to which the stock radio used to print its data. I was going to run a prog that sent the new song name to it, but if the player already does it, would I be able to redirect that to a script to reformat the pulses so they are compatible with the Saab interface?