TV , Music and a Autistic 3 year old

I tell myself evryday this is going to get better. Its not working yet. Quinn is unable to watch TV or hear any music. I have no idea what to do. We are now trying medication in which we said we would never do with him. I perplexed because even the developmental peditrition said she has never heard of such a problem. It all started 6 months ago with him not being able to tolerate certin parts in movies. Then in about 1 week he to scream when the music was on in the car. He used to love music. And one day he woke up unable to tolerate any TV or music. Funny thing is he loves to watch the band at church and any sort of live band. In fact he must be with in a foot of them playing. He sits and stems and make is elephant sound.