Is there a cord that lets you control your ipod through your car?

I just got a new Mazda 3, and it came with a built in auxiliary port. If i buy an auxiliary cord, it will allow me to play the ipod through my car, but i have to switch to next songs with my ipod. Is there a cord that i can get that will hook it up to my system, so i can control volume, songs, and browse folders through my car interface? Thanks.