could be alot of things lots of components or blown speaker.
Or even software problem - backup your tomtom install new files from tomtom home - add voices and then try the sound if no sound still its a hardware problem
paul
June 2009
I can answer this question...
how can i fix a loss of sound on my tomtom go 1st edition?
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix satellite navigation.