I have asked this twice before since release (I see the posts have been removed), so I am only going to ask this one more time.
Please have the jets turn off the engines during turnaround/parking. After the jetway is extened, the engines should be shut off. In RL, the jets do NOT idle their engines for 4 hours while they are serviced, the engines are turned completely off, and do not turn on until the checklist before taxiing.
The prop engines in this game DO turn off their engines btw, so why not do the same for the jets.
The noise really hurts my ears, and I have to turn off all sound if I want to play the game. I am not enjoying it. It is such a little thing, but an important one for comfort.