My 2005 9-3 has devolped an annoying beeping noise that occurs when going over speed bumps etc.
It started to happen after I used the power socket for a satnav under the cd player for the first time.
It might not be anything to do with using the socket but it only started the same or next day after using the socket to charge the satnav.
The sound is like the noise you get when starting and stopping a stopwatch or similar.

Have you come across this before ?

I presume a wire or button to be at fault but would not know were to start, So looking for any help on which buttons make a noise when pressed etc.