I have had similar issues in the past with my 996.
I've noticed on my car there are two sources of a 'beep'.
The car horn will beep if something is left open, or if I double click to lock and disable the internal sensors.
But sometimes the alarm siren will beep one or twice when locking, apparently randomly and I have yet to find a reason/documentation for these beeps.
Just wondered which 'Beep' the OP is hearing. Horn or Siren?
I've noticed on my car there are two sources of a 'beep'.
The car horn will beep if something is left open, or if I double click to lock and disable the internal sensors.
But sometimes the alarm siren will beep one or twice when locking, apparently randomly and I have yet to find a reason/documentation for these beeps.
Just wondered which 'Beep' the OP is hearing. Horn or Siren?