Can I hook up Ipod and My Amp to the Stereo Receiver?

I Have A pioneer Stereo that doesn't have a mp3 input so I have to use one of those RCA cords that connects to my i Pod and connect it to my stereo receiver, the problem is I need my Amp hooked up to the Stereo Receiver as well for my Sub woofer, is there such thing as some type of RCA cord that I can plug multiple devices into that all go into the stereo receiver or some other solution?