battery drain

My 95 runs through a battery a year.  I just replaced it and it ran fine for a
few days then it wouldn't start.  I heard a ticking sound coming from the
passenger side dash.  I opened the passenger door and closed it and the
ticking stopped.  The interior lights and security lights came on but it still
would not start.  Just plain dead would not even turn the starter.  I heard the
ticking sound again, I tried to lock the passenger door with the key and it
would not lock.  It will lock manually.  The passenger door seems to be
connected to this problem.