So, managed to get a hold of a remote and went outside this morning to program it. Was having no luck, it continued to just keep flashing red rapidly. Was pulling the correct fuse but no joy.

Then looked at the unit and discovered it doesn't have a power plug connected, only the antenna. Had a quick look around for a dangling plug but couldn't see one.

Any suggestions on why it might have been unplugged (is it a know battery drain issue, or?) and where it might be hiding?