is it safe to use one of those casette tape adapters to play music from ur iphone in ur car?? someone on this forum http://www.everythingicafe.com/foru...ound-a-way-to-play-iphone-in-my-car-6789.html said something about "I don't know if this has been mentioned before or not. But the best way to play your iPhone in your car without any interference or anything is through the actual Dock the iPhone comes with. Use the "line out" audio input in the back and connect the audio cable in your car (If applicable)! What's also cool is when a call comes through!!! All of a sudden the music shuts off slowly.. and you can hear the phone ringing. Once your done with your call, the iPod feature comes back to the song again.... freaking awesome!! Anyway, hopefully this helps for those who have the Audio Input in their car. Oh and by the way... sound is crispy perfect, just like the ipod if not better! Enjoy!" i did not receive any "acutal dock the iphone comes with" all i got was the actual iphone itself as well as some metal pickett looking thing along with some earphones was something missing from my package?