To test to see if your factory alarm is connected, lock your doors but leave a back window down -- reach inside and unlock a back door, then open it. If the alarm goes off then it's working; if not... well it's either been replaced or it's disconnected.
To turn alarm off, put key in front door and unlock all doors.
'91 300E, 207k miles
Last edited by pmizell; 01-28-2002 at 11:10 PM.