i have the same unit and just put in new batteries. did you make sure that you have all the wires that came off the positive post connected. i know there are a lot of them and one may have dropped behind the tray near the frame. another item to check is that you turned on the battery disconnect in side the door near the entry steps, and heard it click on. i know nothing about the jacks other than not being able to control them independently is stupid.
__________________
|