Audio Systems: help with ipod integration in my car, auxiliary input adapter, nokia n96

Question
i have a 2004 toyota sienna. it has the standard stereo. only has a cd/tape/am/fm1/fm2. i opened up the panels and popped out the stereo on the back it had no rca jacks. so i was wondering how i could install an auxillary input (3.5mm) connector for my ipod i dont need the specific ipod connector, since my brother has a Nokia n96 with 3.5 mm

Answer
this is the best interface there is available full ipop text on Toyota radio

http://partydown.com/lexipod.html

for aux audio only use this interface

http://www.oemautosound.com/pc-339-101-pie-toy-aux-toyota-auxiliary-input-adapte...