A great iPhone Car Adapter for only 5$ !!!
I found a really good stuff for attach the iPhone in my car. Check the website : http://www.thesmacker.com
The smack can be used anywhere with your iPhone or iPod, it must be attached to a clean and smooth surface.
A video is avaible here
Use the "Smack eco" for the iPhones, cost less than 5 dollars :)
I hope you will enjoy it
EDIT : I'm not the seller, i just share a good stuff, please check the website for any question about it, i don't read PM.