Guys,
After looking here at the Renault hack attempt I saw that its protocol can be made on our PCB with no changes. So I quickly wrote something ( in between hacking Pioneer

).
I will not be making them on a regular basis as it is hard to get those stereos over here, but if anyone interested in analog ( not S/PDIF ) version, let me know, I'll build one for you.
All cables included...
Assume it as a beta testing...