I stated it before, teams will always try to find ways to cut corners or "cheat" to get an advantage. This was something that Shanahan even admitted to but people didnt want to believe me.
http://www.weei.com/blogs/weei/forme...ng-crowd-noise
Many have suspected the Colts of bending the rules over the years, and now there's actually some proof.
In an Indianapolis Star profile of former Colts offensive lineman Tarik Glenn, he revealed the Colts had a system in place to deal with crowd noise on the road, which helped Peyton Manning when he was a rookie in 1998.
“We were playing on the road, it might have been Peyton’s rookie year, and it was really loud,” Glenn told the paper. “Peyton [Manning] hadn’t mastered the silent count, so [former offensive line coach] Howard Mudd had us wearing these hearing aids that were supposed to muffle the crowd while projecting the quarterback’s voice.”
Of course, any type of hearing aid would be illegal.