I love mine so much I got a second one for my wife's car. The only thing is, you may get some whine from the alternator, as happens with many chargers with a built-in AUX jack.
I solved it by using this as well:
http://www.amazon.com/gp/product/B0...=B0031U1ATQ&linkCode=as2&tag=lawofattmyjou-20
Also, I'm not sure if it works with the new Lightning connector with the adapter or not yet, because I haven't tried it.
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