Congratulations for your knowledge . I'd want to have a information.i am doing retrofit NBT on E60 and i passed the missing cables from OBD to qudlook. Everybody says that pin8 OBD goes to 29 on qudlook NBT. I read you put it on 20. Why? Can I take +12v for (pin8 OBD) direct from pin 15 quadlock?Instead of pin 16 OBD? Thank you Very much