This is a sound add-on for the Signal Box Locomotive object 193148 1198 signal box with interior view To use it you must place this object in Surveyor at or adjacent to the invisble trackmarker that was created for the signal Box. In Driver, the placed signal box will occupy the same space but will benefit from the sound file attached to this object.This content is updated and rereleased with the kind permission of Jetstreamsky, Jetstreamsky's eula apply's