Questionhow do you make your ipod compatible to your car. do you need a special lead.
AnswerIdeal condition is when head unit or dash mounted unit has iPod docking station built in. Or, if it has an external audio input jack.
Also, there are interface adapters you can purchase for various oem and aftermarket use.
There are many commercial gadgets to do this job. Googling gets you:
http://www.google.com/search?hl=en&q=automobile+ipod+adapter&btnG=Google+Search
and they range from a few dollars to hundreds of dollars.
Crutchfield is a nice place to go in search of such adaptors. If you go to this page:
http://www.crutchfield.com/S-fgGbnaE2jdx/cgi-bin/ProdGroup.asp?g=182350
you can enter your car and they will give you some specific suggestions for iPod adaptors for you specific vehicle.
Best wishes,
Cleggsan