Stupid newbie question I'm sure.  Did a search, but couldn't find anything directly on point.
My story:  My girlfriend and I were recently on holiday.  She had more time than I did, so I came back a bit early.  She asked me to start her car to make sure the battery didn't die.  Well, too late, the battery was dead.  So, I hooked up the cables for a jump start and the alarm immediately blares into action.  It doesn't respond to the remote, and the car won't start with the alarm engaged.  How do I disable or turn-off the alarm so I can jump the car and recharge the battery?
Specific Information:   My girlfriend got the car and remote before we started seeing each other, so some of my information is incomplete.  The car is a '96(?) Jetta, standard shift.  I don't know whether the alarm is factory or after-market, and can't find a manual.  About 5 years ago, she had a Polar Start remote car starter installed (I think model # 2660 - the remote has two buttons).  
After reading a few posts here, I will try the valet switch option, although I don't remember seeing one in the car.  The Polar Start dealer thought we might have to have the car towed in to have someone re-set the alarm.  I would like to avoid the cost of a tow, if possible.
Suggestions?  Thanks.
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D'oh!!!
 
      You can unplug the unit if you cannot find a valet button.  This should also allow he car to start.  Your girlfriend should know where the valet button is.
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J Rilla
Owner/Installer
      if it's stock alarm use key  cylinder in drivers door to disarm stock alarm by unlocking door from the outside with key if alarm blares when u go to jump start try this method for disarming. 
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AudioPro111
      Success!  Thanks guys.
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D'oh!!!