My 85 Carrera Cab Alarm is Possessed

[pplkook]

All

Background:
This is my first Porsche, it is a 85 Cab and I have owned it for a year. The original window sticker stats that it came with an alarm. Here is what I have, a black key fob that sets the alarm and locks the doors, plus the special key lock in the drivers door. I basically drive the car to work on nice days or for running around town, and I never really used the alarm.

Problem:
I came out from work yesterday opened up the door and the alarm goes off. Weird I thought, I didn't set the alarm, so I try the key fob. The light doesn't work, so i am thinking that the battery in the fob is dead, so I open up the quick disconnect on the car battery to stop the shirking racket.

Sure enough, the battery in the fob is dead, so I get a new battery, connect the car battery (alarm goes off), hit the button on the fob and turn off the alarm.

So I head home, park the car, go into the house and then come back out to the garage. I noticed that the doors were locked, I open a door and the alarm goes off again. Hit the key fob, alarm stops. Then I wait.....and the stupid alarm sets itself 30 seconds later.

Observations:
When the alarm is going off, the ignition switch is disabled.
The "factory" drivers door honks the horn when it goes off, the "aftermarket" alarm has a siren type deal.
I have some sort of horn that has been zip tied to my normal horn up in the passenger front fender


Question:
1. I am thinking that I have two alarms - the factory in the door alarm, plus an aftermarket alarm
2. Does anyone know how to fix this problem?
3. How big of a PITA is it to remove the "after market" alarm? I have visions of a FireFly episode where the evil Reever machine attaches itself to your ship and disables it.

Thanks

Jack

[aston@ultrasw.c]

Removing the alarm is easy, just rip it all out. The one thing you will need to do is add 2 shorting links to the connector where the alarm plugs into the harness. If you don't, the car won't start and you will kick yourself.

Off the top of my head I can't remember the exact pins, so my post is useless! You can figure it out from the wiring diag easily enough. One is for the alternator the other for the DME.

[azasadny]

Jack,
Be careful and be sure you remove every part of the alarm system!

[pplkook]

I was just talking with a co-worker, he mentioned that his "clifford alarm" has a valet feature that seems to act similar...I am going to dive under the dash to look for a switch to see if I bumped something near the hood pull.

I will feel like an idiot if that is the case, but at lease it will solve the problem for now.

-Jack

[Brando]

pplkook, I'm just down the 405. I've pulled many "Factory" alarms. It's a PITA but a good idea when these problems start happening.

Check your inbox.

[pplkook]

Good news, I found a toggle switch under the dash. Bad news, it didn't change the problem, so it looks like I get to do an aftermarket alarm exrocism.

Hopefully my head doesn't spin around and I spit green pea soup.

-Jack