I didn't see any flat ribbon cable connectors....I am not sure.
The squeaking sounds was due to a loose part that was rubbing on the fan. I can move the part so that it doesn't make noise. It is supposed to block and control the airflow, I think into the left side of the big fan. When I put it together this time it was hard to see to put it in the right place as the area was cramped. I think the whole thing had been taken apart before and put together wrong which was why it was making noise. No no noise now, anyway and it seems to be blowing fine.