hello everyone, little advice please?

Thank you all for your advice, will be seeing psychologist tomorrow as we have a meeting between all the professionals involved as to how to prepare for primary school in September. 

Presumably they have checked his hearing?

This behaviour is typical of some autistic people who don't really understand that communication is a two-way process where each side has to wait for, and be interested in, what the other person has to say. The psychologists should be able to help you to train him to be better at this. Perhaps you can explain that taking turns is one of the rules of conversation that everyone has to follow. Did you see Born Naughty this week where the mother of the autistic child was shown how to make games of some things and to use rules to get her child to be better in social situations?

Hi, I too have a chatterbox who likes to tell me everything about what he's watching, playing, etc. sings, shouts but he does whisper if I whisper. He also has quiet ish time (we hear the odd loud laugh or quote) when watching the TV although if I'm around, I often get asked to "watch this, watch this".

He may not have a concept of volume so if you lower your voice it may or may not help but it's worth a try. 

I too think maybe games promoting silence might help teach him to hold onto his thoughts a little longer! Perhaps eye spy ( with colours rather than initial sounds if he doesn't have the knowledge yet) so he has to wait for your input before its his turn to talk or Chinese whispers, sleeping fishes. Even if he only manages 30 seconds you can then turn it into a game to try and get to a minute?

Trying the ear defenders isn't going to hurt anything if you find modelling volume and games aren't working, but I'd think he might want to be even louder? Think about when you have headphones on and talk to others, you end up shouting. 

Hi, I haven't heard of anyone trying to block out noises by talking over them but I'm not saying it doesn't happen.  My son sometimes uses headphones with his music on to blot out noises he doesn't like but it irritates him a bit that he then can't hear anything but his music.  As you say, some people use ear defenders in response to noise or get equipment that generates white noise.  I was wondering if your son thinks he has to give voice to every thought + feeling?  His way of expressing himself because he thinks that's what supposed to happen.  Is he aware that people think about things without necessarily voicing their thoughts?   He must surely have some waking time when he's quiet, even if just for a few seconds or minutes?  Could you work at building on that with a system of rewards?  Does he understand there are all sorts of ways he can communicate inc. the written word + "thinking in his head"?  Cd you devise a "thinking in my head game"?  He cd tell you a bit later what he was thinking + get a reward perhaps, maybe a star?  My son sometimes presumes I know what he's thinking when he hasn't said anything.  I've had to point out to him now + then that I'm not a mind reader!  He sees the funny side when I ask him what I'm thinking + he has to admit he doesn't know.  Sorry of my suggestions aren't useful.  Keep on at the professionals, don't give up.