08-23-2007, 04:22 PM

Hi, I've done a lot of research on this and other forums, but am still a bit confused. I have a '97 Z3 that only had 1 key when I bought it, and it was the last key in the set, the cheap looking one with no keyless entry buttons. I'm not sure if my car has keyless entry, but there is a wire running into the mirror, so that should mean that it does right? Also I have the following module installed behind the glove-box:
Part # 61 35 8368173 Central Locking System Module. (ZV-Modul 12V)
I want to install a new keyless entry system and may as well get one with alarm, and so far am interested in the United Auto Security system. My questions are:
1) Does anyone know exactly what this module does? Obviously it controls the locks, but is it optional (for keyless entry for example) or standard?
2) Will a new keyless/alarm system replace the above unit, or would it be installed in addition to this? I can't see any other plugs behind the glovebox for an alarm, and have no sticker in my trunk to say that the car is pre-wired for security.
3) Does anyone know if the above unit is definitely keyless, or is keyless optional with this unit and is an add-on?
My main question though is if I can just unplug the Central Locking Unit and plug in an alarm, and I can't find any reference to this anywhere..
Thanks