0 5 . 5 / 9 4 . 3 ▁FM , ▁a ▁Spanish ▁language ▁regional ▁Mexican ▁music ▁station ▁owned ▁by ▁Est rel la ▁Media . ▁ ▁History ▁The ▁station ▁at ▁ 9 4 . 3 ▁FM ▁in ▁Garden ▁Gro ve ▁signed ▁on ▁in ▁ 1 9 6 1 ▁as ▁K GG K , ▁later ▁to ▁become ▁K TB T , ▁K OR J , ▁K IK F ▁(" K IK - FM ", ▁a ▁country ▁music ▁station ), ▁and ▁K M X N ▁before ▁finally ▁K EB N . ▁ ▁On ▁November ▁ 1 8 , ▁ 1 9 9 4 , ▁K EB N ▁and ▁K BU A , ▁the ▁other ▁area ▁station ▁on ▁ 9 4 . 3 ▁FM ▁began ▁sim ul cast ing ▁the ▁same ▁country ▁music ▁format ▁and ▁ 9 4 . 3 ▁in ▁San ▁Fernando ▁became ▁K Y K F . ▁This ▁last ed ▁until ▁October ▁ 3 1 , ▁ 1 9 9 6 , ▁after ▁the ▁San ▁Fernando ▁station ▁was ▁sold ▁to ▁Liber man ▁and ▁started ▁sim ul cast ing ▁K B UE , ▁and ▁on ▁January ▁ 3 1 , ▁ 1 9 9 7 ▁it ▁acquired ▁the ▁K BU A ▁call ▁letters . ▁" Que ▁Bu ena " ▁now ▁reached ▁most ▁of ▁metropol itan ▁Los ▁Angeles ▁County , ▁though ▁reception ▁remains ▁difficult ▁in ▁some ▁regions , ▁such ▁as ▁the ▁San ▁Gabriel ▁Valley ▁and ▁Mal ib u . ▁A ▁boost er ▁station , ▁K BU A - FM 1 ▁in ▁Santa ▁Clar ita , ▁California