Ok, for this I've done the same as I've done in the past. I disconnected anything that might be it, ie:radio, amp. Even tho I dont have a radio in my car. I disconnected what was wired to the ACC.
HOWEVER!!! This time being its super quiet right now when I connected it up to do this or when i put the battery terminal back on I can hear something. Very faint. Kinda like a small electric motor moving but extremely faint. Located under here...
