Hello, many thank's for your reply. I've got the wiring diagram and i will check the fiber loop (i'm computer & electronic specialist, but here it's very special...). I will try to remove modules from the loop one by one using a short-cut (not sur for the translation) just to see if the system c...

Hello, Each time i start my XC90, the radio power on too (as i never power off it). But one day, the radio power on, 1à second after, the left speaker cut off, then all sound and ligths on the radio. Impossible to power on again until i stopped the car. But it's not finish... after the radio power o...