Make sure it's not on a consistant power line like mentioned above. If that doesn't solve it, try a new / used but you know it works battery and see if that helps. I had the dealer do some work on my alarm and some how they killed the battery to the point it couldn't hold a charge anymore, thus having to jump start or charge the battery every time.

'95 GSX - Big16G ~ Leaks, but atleast it runs.