 Moynihan's first taste of inter-county success arrived at the age of 16 when he was part of the Kerry Minor team that claimed the Munster crown in 1990.Growing in stature and influence, the young Moynihan had a stellar year in 1992 when he lined out for the St. Brendan's team that beat St. Jarlath's College of Tuam to win the Hogan Cup in the All-Ireland Colleges Final and also turned heads on the Kerry U21 team that won out in Munster.It was about this time that Mickey 'Ned' O'Sullivan, former Kerry captain and current manager of the Limerick senior football team, began to talk to people about Moynihan's potential.