Actually I think it would work against you because it might help to create a stereotyped idea of what Autism is.
What you should do is let them get to know you, preferably on some dating site, then reveal it when you feel it is appropriate/relevant whatever. Letting them know straight away wont help them break the idea of what Autism is, although it could set you up for a relationship with somebody who firmly believes in some crazy idea of what Autism is, but in that case you could simply fish for what they believe by referencing it occasionly.
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"They do, but what do you think is on the radio? Meat sounds. You know how when you slap or flap meat, it makes a noise? They talk by flapping their meat at each other. They can even sing by squirting air through their meat." - Terry Bisson