If you have tried installing titantrons with ENT_0106_0_0 for a RVD mod on slot 106, you will have noticed the trons don't work. They will work if assigned other ID's .
So the first question is why isn't that slot working.
The file which handles the playback of media assets in entrances is the assetconv_p30.pac file. This file contains a list of every titantron and theme music ID in the game. If the ID 's were removed from the file, the assets wouldn't play.
The vanilla assetconv