Strange noise

[finlo]

Anyone have any idea what could be causing a noise like a untuned radio coming come the scuttle panel area of a mk3 Mondeo.
I first noticed it about a week ago so disconnected the battery to shut it up which seemed to work however have just walked by it and it's doing it again I thought maybe the battery lead had creapt back to post but it hasn't any ideas?

ETA I thought maybe alarm sounder but with no battery?

[VanDiesel99]

check there's not some sort of creature trapped in there

[Demelitia]

finlo said:

Anyone have any idea what could be causing a noise like a untuned radio coming come the scuttle panel area of a mk3 Mondeo.
I first noticed it about a week ago so disconnected the battery to shut it up which seemed to work however have just walked by it and it's doing it again I thought maybe the battery lead had creapt back to post but it hasn't any ideas?

ETA I thought maybe alarm sounder but with no battery?

The alarm will probably have its own backup battery to prevent the car becoming an easier target to steal with a simple snip of the battery cables.
Sounds like it or the alarm sounder could possibly be dying.
Do you know if the alarm works correctly otherwise?

[finlo]

As far as I know the alarm works fine although I rarely need to lock it so it's not often set.
Also being an ST220 I believe it comes with a Thatcham alarm as standard if that matters?

[Demelitia]

finlo said:

As far as I know the alarm works fine although I rarely need to lock it so it's not often set.
Also being an ST220 I believe it comes with a Thatcham alarm as standard if that matters?

Not familiar with the car myself but a quick google shows this up:
https://www.pistonheads.com/gassing/topic.asp?h=0&...

Maybe arm the alarm and then intentionally set it off and see what happens? If you hear the same noise instead of your alarm then you know where to look.