[1] Beside the vocal duties, Aćin played the keyboards and did the programming, while guest appearances featured guitarists Duda Petrović and Nebojša Marić and percussionist Aleksandar Milanović.
[1] In 1998, under the name Retro Deux, Aćin appeared on the hip hop band WHO Is The BEST album Play, on the track "Još jedan dim" ("Another Puff").
[4] In early 1998, Aćin collaborated with the French group Noir Désir, performing live with them, as well as participating on the remix album One Trip, One Noise with his mixes of the tracks "Fin de siecle (G.L.Y.O)" ("End of the Century (G.L.Y.O)") and "Septembre en attendent (un jour a Belgrade)" ("September Awaits (A Day in Belgrade)").
[5] The group recorded the album Years of Stolen Freedom, which remains officially unreleased until the present day.
[5] In 1995, Aćin composed music for the omnibus film Package Arrangement, for the story directed by Srđan Golubović.
[1] Between 2004 and 2005, he directed 88 episodes of the Serbian soap opera Jelena, and in 2006, co-directed the reality television show Transforma with Peđa Marković.
[6] Aćin directed the theatre piece Pasija po telu (Passion by the Body), performed at the 2002 BITEF festival.