i am trying to use ipod classic to a church amplifier (for hymns) through the headphone socket, but the volume is too low, I have set the output in settings to maximum, but it is still to low (everything has to be set right up) . So I bought a 30pin output to 3.5 socket but found I cannot use the volume control on the ipod (so have to use keep using the volume control on the mixer to vary the volume, (which is awkward)). When I tried it at home through a ipod dock with power to the ipod the volume control on the ipod works ok, any ideas.