2004 Pontiac Grand Prix "install power steering belt 2011" Questions

...power steering has no power when car first started and wheel needs to be turned. That's irrelevant, too. New battery installed in February, 2011. Here's are the facts: Engine refused to turn ...

...power steering quit working. We were advised that the vehicle needed a new PS (serpentine) belt but hours later were told that it also required a new AC compressor (or the belts would keep rubbing ...