iPod iPod Classic and Airplay

I have just bought myself a zeppelin air and the only downside I have with it at the minute is that my iphone and ipad cant store enough music so I'm haivng to dock my ipod classic. Does anyone know if there is an adaptor that I can use with my ipod classic to I can play music wirelessly to the zeppelin?

Yeah I'm hoping that someone realises that there is a gap now and surely it can't be that hard to make, though I suppose it may require an updated version of the firmware which I doubt apple would release