Hello. I have newly acquired a stock 1999 A6 Quattro. I would like to put in an audio connection for my iPhone. Can someone point me in the right direction? I researched some and it led me to this:

Audi iPod AUX USB Bluetooth Guide « EnfigCarStereo's Blog

Can I just purchase this?

http://www.ebay.com/itm/Male-Jack-3-5mm-AUX-Input-Audio-Cable-Adaptor-for-Audi-Skoda-VW-MP3-iPod-iPhone-/251473267798?pt=Motors_Car_Truck_Parts_Accessories&fits=Make%3AAudi%7CModel%3AA6%7CYear%3A1999&hash=item3a8cf98c56&vxp=mtr
What tools will I need to remove the stereo from the dash?

Thank you for advice.