Help!

Over the past two weeks the electrics on my Superb 1.9TDi Elegance, February 2008, have started failing.

It started with the radio station display disappearing from the information display, and then the steering wheel controls for the radio stopped working. Next the SAT NAV display disappeared from the same place. Next the windows stopped going down when the key fob button was pressed, and then the rear passenger door on the drivers side stopped unlocking. The window oon this door will not go up or down at all now. finally, the interior light has started to come on when I break hard. All in just 2 weeks!

Does anyone know what is happening?

Thanks in advance

Sounds like water in the convenience unit, check the carpets for damp, and under the plastic cover by the wipers.