Upgrading bluetooth into an older car?

[adrianajones]

I'm looking to play music from my phone through my car speakers. I've been reading about using a bluetooth adapter to do this. Does anybody have experience upgrading Anybody have any experience with upgrading an older systems as such?

I'm stuck trying to decide between these two brands. One is taotronics and the other is from another good Amazon brand that has good reviews.

http://www.amazon.com/Bluetooth-TaoTronics-Portable-Microphone-Streaming/dp/B013QJ0W8Q

https://kinivo.com/product/btc450-hands-free-bluetooth-car-kit/

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