Choose White Noise Zone... and then apparently you can't pick specific seats... so I've no idea if I'd be right up the front or right up the back.
They've never had this functionality. And you would know if you are at the front or back, as White Noise Covered and White Noise Uncovered are two different seating choices. You must have chosen one or the other.
Last time I picked a specific seat. I know because I picked the same seat as my Phoenix seat.