Listen to your phone -- is that what they're calling it now?

I suspect it went more like this:

Sammy driving puts on John Mayer.
Dean turns it off.
Sam turns it on.
Dean: Why are you inflicting this crap on me?
Sam: Shotgun shuts his cakehole!
Dean: My car! Besides, I've got good taste. Anyone who voluntarily puts on John Mayer loses his music selecting priveleges.

*some weeks later*
Sammy driving puts on John Mayer.
Dean turns it off.
Sam chucks LG phone at Dean.
Dean: What the hell?
Sam: I put all your crap on that. Now will you shut your cakehole?