Car Alarms: viper 5902 on bmw, 325ci bmw, private shop

Question
Hi, I have the viper 5902 alarm and I wanted to install it on my 04 325ci bmw. When I took it to a private shop they said I needed an xpress kit model DPLK or something like that. But when I went to bestbuy , not only did they say I didn't need it but that its not the right one for my car. So I wanted to know if I need the xpress kit in order to have the alarm work on my bmw? Thannk you

Answer
There may be a transponder in the ignition, but I have looked around
and there is no kit available for your year 325ci.

So they may know more than I do. From what I see, there is
nothing that could have been offered by anyone.

So that's all I can offer here so you
can determine what's what.

Good luck.

ALARMTEK