Personally, I prefer to listen to my tractors sound system through my blue tooth headset. Not only does it block out 90% of the noise volume, I don't have to have the volume so high to hear it well.......I plug the IPod Classic into it as I have about 600 of my favorites on it, which is what I listen to 90% of the time.
The other issue I found was when I am out plowing snow at 3 am in neighbors driveways, they might not be as enthusiastic for my Guns and Roses at that hour, so the headset also eliminates that concern.
It's pretty cool to get out of the tractor and have the headset continuing the music when I am shoveling the steps or getting the snow melt material ready for spreading.
There is a "resonating" sound which bothers my hearing without the head set on. So, every time I operate my tractor, I wear that headset....I hang it on the steering wheel in the cab when I am not wearing it. I even have special pair of gloves I like to wear when working with the tractor and those are put on the seat each time I am done with the tractor.
Glad you are happy with your cab and sound system...............