I have a fabia2 08 plate over night my radio stopped working airbag light came on and headlight adjustment motor won't work I have checked every fuse in the car all are good and also checked the power supply for the radio that is good head unit also works tried that via another power source can anybody suggest anything I should look at or can it all be down too air bag needing resetting ....

If your airbag light is on scan for fault codes. It should at least give you a starting point.