Play iphone music through your car

For every one  who  ask  about  an application to  play  iphone music  through  his car,  there's no application  for that  because  the  iphone  just  an  FM  receiver. But now with itrip  you  can do it.

1- Plug itrip on  your  iphone.

2- Set it  for example on 96.3.

3- Set your car's radio on  the same.

4- Now play your iphone music.