The cornerback didn't make his public announcement of where he would attend college until Wednesday at a ceremony at his school.
McFadden, a 6-0, 175-pounder with sub 4.5 speed, took an official recruiting visit to Auburn last fall where he watched the Tigers defeat the Arkansas Razorbacks.
In 2004 he was credited with 56 tackles, seven pass break-ups and three interceptions despite most opponents attacking the other side of the field when they passed the football. McFadden used his speed as a return man, too, with three kickoffs for scores and one punt for a touchdown.
He wrapped up his high school football playing days with a strong performance last month in the Dade-Broward All-Star Game.
McFadden chose Auburn over Michigan State, South Florida, Illinois and others. He took his final official visit last weekend to see Coach Ron Zook at Illinois, who had also recruited him when Zook was at Florida.
McFadden says the game day atmosphere in Auburn also impressed him along with the people he met on his weekend on the AU campus.