Hi all, I have an A4 Cab 2.5TDI. Ive noticed that the siren does not work when alarm is activated. Can you turn this off / on with VAGCOM (i have this) as i cant see the section for the alarm on it. And the passenger side LED does not flash, can this be connected to problem? - Didnt want to take door card off as it looks a bit tricky. Would appreciate your help.