OBD Computer

main menu
... |
-- EDW (is the control unit for the alarm system)
... |
... -- variant coding
... |
... -- country setting: rest of the world
... -- alarm siren instead of alarm horn
... |
... -- Netherlands setting
... -- volume
... |
... -- 2% (how powerful the chirp should be)
... -- 4%
... -- 6%

This what the Tech Said should work, as far as re-programming the ECU. I have an appointment Monday @ 0830. I will let you all know how it goes.