I use this on my bike to play Bluetooth GPS and music from my iPhone through the bike radio's aux jack. It works very well, after the first pairing it connects immediately when you turn on the bike. I use a more expensive power adapter than a regular cigarette lighter power adapter. I think this is necessary so that the power supply does not hum. I have a 2003 Harley Davidson with a bat fairing that has a cigarette lighter socket on the left side. I used a short audio cable with square plugs so this whole little setup is hidden and barely visible.
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