Play iPhone through car stereo with good quality?

Right now I have a Belkin think that goes into the 30pin plug of my iPhone and other end goes into the car outlet cigarette lighter thing and it plays but its not very good quality and it doesn't go very loud, not as loud as CDs. Is there a why to get my iPhone to play better sounding music without getting a new head unit/new speakers? CDs sound great in my car so its the speakers.

You can buy a small device that makes its own fm radio and it will connect to your phone and you simply connect it to your phone and turn your car to the radio station you set the device at and that's it!

What you have its and FM adapter, they are aw full, static noise distortion bad and low sound quality, because its FM and universal

what you need is an iPod interface for your vehicle, not universal something that will connect to the back of your factory radio, this way you can get digital audio quality and controls from the radio,
also some factory radios display all the iPod text, and allow you to use the steering wheel controls

http://www.oemautosound.com/c-5-car-ipod-iphone-interface.aspx

The iSimple IS32 is an FM modulator that plugs in between the antenna wire and your stereo and works very well. The best thing is, when you get rid of your car, you can take it out and put it in a different car that doesn't have an Aux input, either.

You can't do that with the OEM interface modules. They're vehicle specific.
http://www.amazon.com/...B004613FCE

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