How to play music through bluetooth inside a car?

My mum just got a new car or whatevv and i was wondering how to play music through the bluetooth option. I synced my iPhone 4 and I think there's some way i can play the music or whatever. Haha how the flip can i do it? I really wanna listen to my music. Sorry for rambling! Teehee

Read the article "Playing Music on a iPod in Car via Bluetooth" below and it'll tell you step by step.

Although the car may have bluetooth, it all depends on the car manufacturer. There are a multitude of bluetooth "profiles" available that define how bluetooth will operate. You need to find out what "profiles" your mom's car supports. What you are looking for is A2DP. What is A2DP? This article talks about cars with bluetooth and some of the many bluetooth "profiles". If your mom's car does not support the A2DP profile then you can't play music via bluetooth.

What can Bluetooth do besides make calls? Http://reviews.cnet.com/8301-13746_7-57452802-48/what-can-bluetooth-do-besides-make-calls-abcs-of-car-tech/

an excerpt:

Advanced Audio Distribution Profile (A2DP)
A2DP is sometimes referred to as Bluetooth audio streaming. This profile transforms your Bluetooth connection into an invisible auxiliary audio cable, enabling wireless transmission of digital audio to your car's audio system. Audio quality varies from case to case with a dynamic bit pool (or range of bit rates) being negotiated by the transmitting the device (your phone) and the receiver (your car) at the time of pairing. Generally speaking, we've found the quality to be good enough for compressed MP3s with only a few isolated examples of a noticeable quality drop.

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