After dropping into non-League football, Kerr helped Wycombe Wanderers win back-to-back promotions to reach the Second Division.
[4] He made his professional debut two years later, making ten appearances for the side, before being released in 1986.
[4] He joined Cardiff City and enjoyed an extended run in the first team, playing 31 league matches during the 1986–87 season and scoring his first senior goal in a 3–1 victory over Scunthorpe United.
[4] In 1988, Wycombe Wanderers manager Jim Kelman paid £3,000 to sign him from Telford as a replacement for the injured Matt Crossley.
[5] He remained with Wycombe until 1993, helping the club win promotion back to the Football League and the FA Trophy, scoring one of his side's goals in a 4–1 victory over Runcorn in the final, to secure a non-League double in 1993.