Can I get My Stock Alarm to Work?

Maybe the prior owner disconnected it somewhere.
Thanks for the info.

You can try reconnecting it if it is disconnected.
The easiest way to test it, is to get in the car, roll down a window, and lock a door with the key, then open the door from the inside. if it goes off, a horn will sound and the lights will flash.
Alon
You can try reconnecting it if it is disconnected.
The easiest way to test it, is to get in the car, roll down a window, and lock a door with the key, then open the door from the inside. if it goes off, a horn will sound and the lights will flash.
Alon
Trending Topics
The Best of Mercedes & AMG
I plugged them back in and the box started making a tick/tock sound - like the lights should be flashing - nothing. Test did not owrk. I unplugged them again.
Is the Becker unit the alarm brain or just the security for the stock radio?
I do not know how to figure out if I wired the small plug back right? Any diagrams anywhere?
This is a 1992 400E.
Thanks







