Decided to try replacing the alarm batteries and followed your PDF instructions to the letter. Thank you so very much for the step by step procedures and pictures couldn't have done it without them. My wife now has a working alarm system on her dream car and I learned quite a bit and took the time while I was at it to check the drain holes, make a grommet to fit around the driver side wiper and correctly position the wiper arms. Total cost $30. I've attached a couple of pictures of the batteries and board when I pulled them from the siren.