In the Quad version, each guy gets his own speaker:

"Nevermind your name, just give us your number." is obviously Randy and he's in Front Right.

"Nevermind your face, just show us your card." must be Bernie and he's in Back Right. I say "must be" because....

"And we wanna know, who's wing are you under?" is obviously Glen and he's in Left Back.

"You'd better step to the right or we can make it hard" is of course, the one and only Don Henley and he begins in Front Left but when he says the word "right", his vocals move from Front Left to front center to resume lead vocals.