Got a different speaker to try in the bottom of the cab? When I lost all sound on my Doctor Who after NLP it was that the bottom speaker that had gone home, which resulted in no sound on any of the others. Took a speaker out of another game to test and hey presto had sound.
Worth a try.
Sent from my iPad using Tapatalk
Lost all the sound in my BOP - fuses seem ok - where to look next?
When people say seem ok, my first question is did you actually take it out of the game and test it with a meter...?