If it was not for this forum I never would have bought my Crossfire and I would have missed out on all this fun part.
Actually, I have enjoyed going through all the tutorials and early on I read the tutorial about fixing "Crickets on Crack". I remember thinking that I'd better buy a couple of Varta batteries in case I too develop a cricket problem.
Oops - too late. Yesterday I really didn't know what a "Cricket on Crack" really was - today - I'm starting to get way too familiar with cracked crikets. Yesterday I couldn't get the siren to shut off without pulling a fuse.
I'm glad I read the tutorial that cautioned me not to buy the Varta batteries before I checked out the condition of the circuit board on the siren. Right there this forum saved me a bunch of money. My circuit board was fried. Buying batteries would have been a waste of money - I'm going to need a complete new siren.
I don't want to go "used" if I can help it because I already have a "used" siren. I have the "AB" version but I would rather have the "AA" version with the "chirp". Finding the "AA" (at a reasonable price) is proving to be a big challenge.
Anyway, this what the circuit board looked like - really bad.
Again, "thank you" forum.

 

OK so I have a few questions for you.

A year ago I had the same problem...alarm came on randomly and I had to pull the fuze. Then, at some point it stopped but in hindsight I think my alarm went "dead" as not even the PANIC button will activate the alarm anymore and I feel uncomfortable without a car alarm!
So, now I'm wondering is it my batteries or a dead alarm?
How do I find out? Is it hard to located and take apart?
I'm at a loss here as I have no clue about alarm system!

Thanks,
Nick

 

It is not hard to locate, it is mounted in the center under the wiper cowl.
It IS had to take apart, as it was not designed for that. You basically have to hacksaw it apart.
If the circuit board hasn't been eaten up with corrosion, you can replace the Varta batteries and glue it back together.
See :
https://www.crossfireforum.org/forum...rm-module.html

 

Plus 1 on what ala_xfire just posted.
There are a lot of knowledgeable people on this forum who can answer your questions about how the security system works. About the only contribution I can give you is my actual experience removing the siren.
This was physically hard on me. Bad back - I just can't bend over the fenders or crawl under cars the way I used to - my point being, if I can find and remove the siren , then you should have no problem.
For me, removing the windshield wiper arms was a real pain. I fiddled around with a cheap-o puller, but it couldn't get an even grip, and it just kept twisting off. I finally gave both "stalks" a shot of BreakAway and let them sit for a while. The puller still did not work so I used an old ball joint remover to pop the arms off.
Removing the screws to free up the cowl was no problem, but I never did get the cowl completely off the car. Too many tubes and wires for a complete removal, but I got it loose enough to just peek in, find the siren and the bolt holding it on, and remove the siren.
I diddled around with the electrical connection to the siren. I thought it might have a clip that I had to release - but it just pulls apart. Once you release the electrical connector and remove the bolt, the siren just lifts out.
I did not use a hacksaw to split the two halfs of the siren. I used a Dremel tool with a cut-off disc.

The tutorial (PDF) mentioned by ala_xfire (above) is really good. You should also use the search function and keep typing in things like "siren", "siren keeps going off", "bad siren", etc.
You can do this.

Best of luck.