The alarm system on my 86 300SDL was hypersensitive, so I disconnected it by unplugging the two black connectors to the alarm controller, under the passengers foot rest. I first unplugged the smaller (lower) one, but that caused a lot of clicking after a while, so I ended up unplugging both. This was 2 days ago, and I was able to start and drive the car that day.
But today it won't start - barely cranks and glow light/buzzer is fairly dim. I thought the battery was dead, but other things (headlights) work fine, not dim at all. I'm thinking now that I screwed up something in the alarm controller which blocks the ignition system. Is there any way I can bypass that completely to start the car, which I need to do to avoid being towed tomorrow? Is there a way to reset the alarm system so it won't block the ignition? I tried reconnecting the controller and locking/unlocking many times, but that didn't work. Thanks.