He was a standout linebacker at UNC from 1989-92, earning three-time all-ACC honors during Mack Brown's tenure in Chapel Hill.
Auburn's new staff is led by head coach Gene Chizik, who served as the defensive coordinator for Brown in Texas from 2005-06.
7:30pm Update - Auburn has released the following quote from Thigpen in a press release:
"I'm excited about the opportunity to work at a tradition-rich program like Auburn and for an outstanding coach in Gene Chizik. It was a tough decision to leave my alma mater, but this is a great step for me professionally. I've known Ted Roof from his days in the ACC and played for Mack Brown, so I'm very familiar with the outstanding coaches that are in place at Auburn. I can't wait to get started and look forward to joining the Auburn family."