"There is an option to upgrade to the more expensive alarm, which is factory installed but dormant until activated which you have to pay for. I'm not sure if they're all the same but my car came with the KAR system."
An upgrade to the alarm system from the factory?
Could you please expound on this (jd31) - because I do not understand how the alarm could be upgraded.
On a side window - (hafalex) the person who broke in to your WK2 must have been persistent, as all of the glass is "safety" glass (similar to that of the winshield). Just firing a rock and hitting the window would basically make a mess but not break completely. Someone would have to throw very hard, hit the middle (of the side window) poke a hole and rip out the chunks by hand to get in. All just to grab a thing in reach (like an Ipod, wallet, purse, etc) and not open the door from having broke the window. At the point that the door is opened from the outside, and the "alarm" (or, more specifically the subroutine within the controller module) does not sence the FOB in the area to request the unlock - the alarm will sound.
Sorry to hear that you were victim to a petty thief. Those are the worst type in my eyes. All of that damage plus having lost a small personal item likely is not even going to add up to the deductible (~$500 I presume), and just a real PITA.