Yes I've noticed my stereo sounds so much better now!
You can hear the before & after engine sound difference in video above. Also anyone seeing this I'm giving away an OBD adapter so check out video!
Yeah this video was a general overview of how to make changes. I didn't want to take credit for the codes others have discovered. There is another thread in electronics forum that has more coding instructions.
So did you get full screen CarPlay to work?