2009 - Radio/Aux jack sound issue

[bobfolgerjr]

I just purchased my 2009 Yaris and am trying to lisenten to my standard ipod through the aux jack. I have the connection setup like this: wire comes from where headphones would go then other end is plugged into aux jack. The volume however is low compared to if I was just listening to the radio/cd player. Do I have this hooked up the right way. The volume is turned up all the may on the ipod too. The sound just is not as good through the aux jack.

Any help in inproving the sound would be appreciated