Instantly reconnects to my iPhone every time I turn it on. I think there are some iPhone connection concerns for people who connect multiple phones, probably because it wants to connect to the last phone it was connected to every time. As for me, I connected it once through the iPhone setup (SE 2.0) and now when I turn on the Bluetooth device and press play on the iPhone, the music starts playing on the stereo immediately. That's exactly what I wanted. I also have one of those FM converters that you line up with the car radio antenna and hooked up this bluetooth box to it as an input. Skip the FM converter that plugs into an outlet and broadcasts wirelessly if you want to keep everything hidden. This combo is completely hidden, you can add a separate power switch if you want it to work separately and it works great allowing you to use my original car stereo and speakers behind the dash with very little effort and minimal hardware.
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