trying to transfer music from itunes to iphone get error statement 400
I am trying to transfer CDs to my I phone to play in my car which does not have a CD player but does bluetooth stuff. I downloaded Itunes to my PC and uploaded some of my CDs to it. Then I attached my iphone to the PC and attempted to have Itunes send my cd music to the Iphone. It goes through a long update process but always ends up with an error statement 400. I have done this three times with same result
iPhone SE, iOS 13