Try and make contact with smaller camps (not the big sound camps at 2 and 10 o'clock)--there's a list of camps that were on the playa last year on the burningman.com main site. I don't know, do you submit a set tape? Whatever the usual procedure is, and do the footwork, djs are a dime a dozen on playa (and with no commerce, there's no dimes, just dozens.)
Be prepared to be the butt of many jokes.
The Lady with a Lamprey
"The powerful are exploiting people, art and ideas, and this leads to us plebes debating how to best ration ice.
Man, no wonder they always win....." Lonesomebri
Get a Taint, you pathetic cur!