Regarding the headphone jack, they wrote a note that they found nothing wrong with the headphone jack, and I need to use "noise cancelling headphones".
That's interesting as I'd swear I recall a thread where they found that some noise cancelling headphones don't work at all or made matters worse! I think they even recommended that you don't use NC type headphones.
That could have been so long ago though that it pre-dates the headphone jack recall which could have fixed that issue far all I remember. It seems like the headphone jack issue just happened a couple months ago in my mind.
Time really does fly!
I've always been able to use a pair of Sony NC headphones that work fantastic if I must listen in a noisy room.
I don't need them often and usually use them so I don't disturb others instead of using them to cancel room noise such as comes from all the cooling fans running near my main radio bench.