Anyone know if there is a 3.5MM jack to USB cable?

I have an Alpine CDA105 stereo. I am being told there is not cable that will allow me to use my USB cable to interface to a 3.5mm input. So I need to purchase an AINet cable that is about $25. I don't mind buying it but I would like to be able to have it work from my usb port. Right now I can plug in my iphone or ipod OR I just pull the ipod cable and use a jumpdrive or USB hard drive. Now I want to be able to use a 3.5 mm input. So do I have any other options? I really don't need it, but today I was showing my buddy my stereo and he wanted to plug in his zune and asked if I had a 3.5mm input so I want to be prepped in the future.

Any help is great.

 

hmm, I wonder if that will work. thank you.

 

monoprice is awesome. So cheap.

 

yup. 2 days tops. I was gonna buy some HDMI/DVI cables a while back, along with some RCA cables at Best Buy until the Apple Rep told me about monoprice. I was gonna spend ~$90 at best buy. Got it all for ~$17 shipped of monoprice. Ive been using them for about 6 months with no issues