I have done like the tuto, but at the time, i haven't made the connection with the steering control for the radio and my screen is in off mode yet... But the radio feels like that is on because when we loads the on button, the radio makes a sound. I have the wiring from a pré-equiped tomtom clio 3.2 and i have made the connection +AVC, + APC, masse and CAN vehicule (the 4 connections to the diag's) and the screen does not run... Do you have some explanation for these? :/