Instruction: Generate an answer to the question by utilizing the information contained in the document.

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Question: Does it turn itself on when power is applied?
Document: I wired it up so it looks okay and is fairly permanent. I never need to charge the adapter.When I get in and start the car, the Bluetooth adapter needs to be turned on. Even with power, it will eventually turn off if there's no signal. My cigarette lighter has power all the time, with or without a key in the car. Once it's on, it will auto pair with the phone. Then you need to start the music.
Once I've woken the device it finds and connects to my phone on its own. I don't have to go into my phone settings or even turn on my phone. This device finds it and does all the work. Works every time.
If I stay within range, the phone will continue to send Bluetooth audio to the phone, whether plugged in or not.. so at home I have a indoor garage and I am required to turn the music off on the phone, or turn the Bluetooth off in the car.So, some interface required, but overall better than messing with cables.
Works great, long battery life. Only drawback is the sequence to power on and or sync, the light response is slow so it is hard to tell when you get it in the mode. I would buy again though.
This is one of the more ingenious Bluetooth receivers that I've tested. It allows you to turn any of your older audio systems into a receiver for your smartphone music. It also features the old Apple 30-pin connector, which makes it as an ideal bridge between your older i-devices and the specialized music equipment for them.The receiver is very easy to pair &#8211; just plug it in and connect to it from your smartphone&#8217;s settings menu.
The power/sync button is tiny and seems delicate so I'll knock half a star off for that.The other half star is lost because the ipod port is incompatible with my stereo - an old Griffin Amplifi 2.1 ipod stereo. It's unclear if the receiver can charge from the stereo's ipod port, but it definitely can't send audio through it.
Really long battery life as well. I didnt have some of the connection problems others have mentioned in reviews -- my phone remembers the setting and auto connects. I used this primarily on my DeWalt stereo to turn a blue collar sound system into a white collar tech toy :)  The headphone jack cord is only a couple inches long so this hangs nicely from the front without any issues and runs for hours streaming my music.
Works great in my truck stereo! However, the volume is limited to a low volume with every pair of my headphones.I think you need whatever speakers you're using to have a power source. The only reason why they work great in my truck is because the speakers are hooked up to an amplifier. I think that's the reason.It also doesn't work in my docking station for crap like it's designed to.
The August receiver doesn't appear to buffer much information when streaming audio, so I set my phone to buffer the maximum it can then I  turned off wifi as well as 4g data. No more pauses..If you have this unit and you notice audible pauses, try a few of the tips I mentioned here.An added bonus, this unit will remember and re-connect automatically to multiple devices, so once and done pairing.The only criticisim I have is the power button.
I purchased this to interface between my iPhone 5s (Bluetooth) and my Ford Expedition (aux 3.5mm headphone jack).Although the unit is designed for older docks using the 30-pin connector, I had a different plan. Ideally, I would plug the 3.5mm headphone jack into the line-in plug on my truck, and power the adapter using a 30-pin car charger for my old iPhone 4...Everything worked.
Answer: No.  Power button on side needs to be pressed. Still good product. Use it almost daily. If left on it will reestablish connection when back in range.