Tired of the alarm, how to disconnect?

[JBoggs]

86 560sl, stinking alarm goes off on it's own, can't shut it off. Even drove down the road with the alarm on this morning. Tried every key position I can think (red dot key), even took to slamming the doors to get it to stop.

Where and what do I pull to take the alarm out of the system entirely?

Thanks.

JB