Popped up on my display last night after driving for about 15 mins, then again today after driving for about half an hour. I've read that the controller is located behind the glove box, does anyone know if this is correct? Or does anyone know where the sensors are located? I've also read that someone fixed this intermittent problem by cleaning the contacts on a sensor or all sensors? I actually just completed a full audio install last weekend in my S3 and i'm a little concerned I could have 'knocked' something if you know what I mean as I did have the glove box out! Any advice would be excellent, thanks.