Roco ET 90 02 + ESU Loksound 4.0 headlights sound on/off whistle 3 music #1 fan compressor acceleration/brake time, shunting mode/shunting speed curve squeal AUX 1 compressed air let off conductor’s signal music #2 sanding valve brake release/set brake announcement #1 short whistle signal open/close slide door rail clank announcement #2 announcement #3 windscreen wiper people talk random sounds off/on sound fader disable brake squeal sound