I didn't think that I would say this, but I have changed my opinion. I am now in favor of the unpopular piped in music. At least in my section, when the piped in music started playing, quiet people started getting louder. In a close game that is exactly what you want - some of the quiet people getting louder.
Sure people will cheer when UofM makes a good play etc.
However, you want people cheering when the opponent is at the line of scrimmage and calling audibles. And that is exactly what the piped in music helped with.
There are a lot of lazy fans in there and many of them will cheer when the piped in music is going. In example, my wife only cheered when UofM scored or the piped in music came on during ND's offensive possession.
I also noticed a lot of other quiet types only making noise when the 7 Nation Army, Welcome to the Jungle, etc came on during ND's possessions. Otherwise they wouldn't be making noise during ND's possessions. People act like sheep and the piped in music is the shepherd.
Sorry, just had to say it.