Wierd alarm problem

I have a Clifford Ace 7500 that I bought when I worked at Circuit City and installed myself.  I have a very odd problem.  It seems that every winter when it gets cold (not necesarily freezing) outside always at night it sets off the alarm.  But not in the normal way.  What it does is have a very long chirp, but not fully go into alarm.  It just chirps once, then waits.  Sometimes it will do it a couple times in a row, other times it will take a few minutes between.  And the alarm never shows that the alarm actually went off. (no three chirps upon disarm)

The electrical is very stable in having an Optima red top, 1/0 awg wire (including the chassis ground) to the back, then tapped to the power wires for the alarm.  The ground has been moved and redone properly (paint sanded, self tapping screw with star washer).

Someone once mentioned that it could be the shock sensor.  But I'm unsure how to fix this.  Do I just need to adjust the sensitivity?  Do I need to get a new one?

Thanks for any help.

i am thinking that maybe it is either the shock sensor a little too sensitive, or your alarm or something else in the car is draining the battery enough when it is cold outside to set off the alarm. if your shock sensor can be turned off, try that first, if that does not do it, then hook up a dvom to the battery, and close the hood with the cables running outside the car, and set the alarm, and see if something is setting off the alarm. sometimes if the battery voltage goes too low, the alarm will go off, i had this problem in my truck, and it was a bad battery, the battery would charge up while running, but when shut off, the voltage would drop, and my alarm would set off when the voltage got below 10 volts.

  good luck

Interesting ideas, and I will check them out.  My shock sensor definitely isn't too sensitive.  It NEVER false alarms on me.  But I will adjust the sensitivity anyway just to be sure.

As for a drain, I recently didn't drive my car for 4 days.  When I got back in it, it started right up.  I figure that is the ultimate way of showing that there is no drain anywhere.  Also you will note that the alarm isn't actually going off.  It is just doing an odd chirp thing.

taking the batteries out of your remotes and see if it does it over night,   My alpine remote did that to me,,,in the middle of the night it would unlock my doors, and lock them, and so on.  So i sent back the remote and everything is fine and dandy now.