When Metallica's "For Whom the Bell Tolls" sounds to implore the defense to make a third-down stop, Carroo hears that as well.
Carroo, a rising 6-foot, 200-pound class of 2012 receiver at Don Bosco Prep, goes to school in Ramsey, N.J., but lives, literally, a stone's throw from Rutgers Stadium, which brings an interesting dichotomy into his recruitment.
Don Bosco Prep hasn't sent many players to Rutgers, but none of their players have grown up with the Scarlet Knights quite like Carroo did.
"I don't know a lot about the program, but I know they have pretty good games," Carroo said. "I can hear them from my house. Rutgers used to be not very good, so my friends and I used to go to games at halftime and they would just let us in and we would go watch the games.
"Now, we can't even approach the gates there because so many people go."
The only school to tell Carroo he was getting an offer Sept. 1 (if the NCAA rule for pushing offers back to Aug. 1 of a senior season doesn't take affect) is Boston College.
Carroo visited Boston College with Don Bosco for a camp this summer, but has not been to Pittsburgh. He's also unofficially visited Rutgers three times – not including his sneak-ins to games, and got a chance to speak with coach Greg Schiano on several occasions.
"Rutgers is great. I live about 30 seconds from Rutgers," Carroo said. "I met (Schiano) at the 7-on-7 (in June) and I met him as a sophomore at the 7-on-7. We had a pretty good talk during the 7-on-7 my sophomore year.
"He's a pretty funny guy, pretty laid back. He's pretty cool."
The pipeline existing from Don Bosco to Boston College is something Carroo knows about, and current quarterback Gary Nova, a Pittsburgh commit, is constantly telling Carroo about the Panthers.
"Boston College, they are like a family," Carroo said. "They treat each other very close, and they're like a family up there. A lot of Bosco guys go to there.
"I don't know anything about (Pittsburgh). I know my quarterback is going there. I talk to a lot of coaches there and Gary Nova tells me it's a great school."
Carroo, like many of his other Don Bosco teammates, is already well-versed in the recruiting process, and he has an idea of what it will be like to live away from home in college.
With the commute from Piscataway to Ramsey an hour each way, Carroo spends his weeks living with the family of backup quarterback Mike Yankovich.
"It's pretty good," Carroo said. "Sophomore year I kind of struggled with plays sometimes and Mike, being the backup quarterback, and I sat at the board and went over plays. Freshman year I kind of struggled, but his family is so great and nice, now I'm comfortable and I kick back and like it there."