Mazda 6 Ipod MP3 Itegration Module

I was wondering if anyone out there has installed a ipod integration module kit to the back of their factory radio. If so what did you install and I am looking for something similar to this

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=190369723614&ssPageName=STRK:MEWAX:IT

I have factory radio with built in 6 disk cd changer and factory navigation in a 2006 Mazda 6. If any one could help me out with this it would be much appreciated.

Ok I went ahead and bought that kit. It is from dice electronics
http://diceelectronics.com/mazda.html
I installed it today and connected a aux cable to it for my sony walkman. That was the main reason for buying it was for the aux connection. Install was really easy. I bought it off ebay instead of their website since it was little cheaper. If anyone is wondering I got the I-Mazda-R2 model. Works good sound is great.