The sound on my 200w does not work (It was purchased over a year ago, but never used until now so the warranty has expired) Is there any way to activate it?

Check in your settings menu. It could just be turned off in there and if it then turn it back on, it could also be in one of your default settings that it is off all the time. Also check your volume if it is down then you will never hear it. One final thing when you look at the screen when you are traveling, do you see a small speaker with an x through it? If you do just touch the speaker icon and you should get sound back, otherwise i suggest you enjoy the silence, since personally i find it annoying to hear them yapping. Hope this helps