Correct, although not sure about the manual override. There is a module behind the kick panel that the control box plugs into. I think it’s the plug for the OEM e-boards. Don’t recall an override button or something like it on the control box, but never needed to manually override them, as they have worked since day one.
Really have had no issues with them. Just the initial install and lining them up evenly on both sides. Because of the swing out feature, the arms are mounted to the board through aluminum threaded blocks in a groove under the boards. These blocks slide back and forth in the groove until you completely tighten them down. My passenger side was a breeze. Driver side fought back for an hour or so.
A bit cheaper option than the AMP boards. Not as tucked under but I do like how they swing out, how they look under there when tucked away and I honestly have no major complaints to report. I really like them.
Hope this helps. Good luck