Stereo & Electronics - Ipod adapter, search is down in Iraq

I go home in September and I want to get an Ipod adapter for the factory cd player. I want to use the steering wheel controls to change the songs and volume. Is there one to do this?

http://www.bestbuy.com/site/olspage.jsp?skuId=8294696&st=IPOD&lp=1&type=product&cp=1&id=1172880156033

Thanks

If I use this can I still use an amplifier too?

I'm using this one:

http://www.discountcarstereo.com/detail.aspx?ID=724

...and have great luck with it. I also use the optional RCA input connections to pipe my XM sat into. So this unit gives me both, my IPOD & XM use, on my factory Monsoon radio.