Strange electronic noises coming from engine when turned off
Hello good people,
So I recently replaced my three Interstate 31 ECL batteries (they were 8 years old :0 ) and the bus starts fine and everything, I just don't understand this weird electrical noise it makes when just sitting. It makes noises every day and I know that will be drawing some power so I would like to figure out how I might be able to solve this? If I could upload a video showing you where and how it sounds that would be ideal but it seems that skoolie.net doesn't allow that. The sound is coming from what I believe is the electrical box for the yellow arm that sticks out for the kids when getting off.
Thanks in advance.