I also have a CAT1 alarm on the car, just the circuit board on the receiver has got rusty parts on it! I'm just trying to sort it at the moment as I'm looking at selling the car, and £70 wasn't what I was hoping for.
I think I'll try and have a play around with it a bit more tomorrow.
Does anyone know the combination to get around it in case I properly break it! I think it consists of the button on the right indicator stalk and turning the ignition on and off?
The sunroof isn't leaking at the moment as that and the aerial are both taped up, as the sunroof also doesn't work, lol.
I don't see how the black box comes off, as it looks like it's wired beyond reach. :S
Thanks for the help so far!