Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: With the kenwood music control app will I be able to control my Moto X with either the bluetooth or the USB connection?
Document: Why Kenwood decided to make the USB cable captive (permanently attached) to the rear of the unit is beyond me, especially because not everyone is going to want to even use that particular USB port. Also, I found that the extraction keys excel as finger slicing blades but are unsuited to their actual purpose. (2) The functions that I care about are Bluetooth streaming, HD Radio and maybe Bluetooth telephony.
The much vaunted Pandora, iHeartRadio and Aha functionality only work with iPhones if they are connected using a wired interface. For some reason, Android devices fare better in this regard. Either way, I didn't test that functionality since it is irrelevant to me. I use Spotify, Songza, Podcasts and go back and forth between Apple Maps, Google Maps and Waze. Which brings me to the second point: you get no information on the screen about what is playing when you use Spotify or Songza via Bluetooth!
You can use the buttons on the head unit to jump to the next track but that's it. No song title. No artist information. For some reason, the information is displayed when using the Podcast app but none of the other apps that I've tried. 2005 wants its iPod integration back... Perhaps things are better with a wired connection but that's hardly the point.
Two parts to this: (1) installation and (2) functionality. (1) Installation was into a 2002 Porsche 911, which means that everything is a tight fit. This unit has three captive connectors attached to short wires at the back: Bluetooth headset, antenna and rear USB cable. Of these, the rear USB cable is the most troublesome since unless you get it out of the way by feeding it into the glovebox or some other location, the unit will not slide home.
Blue tooth audio and calling work great. The people I talk to can hear me perfectly.Music quality is excellent.
This head unit is awesome. The only reason I didn't give it 5 stars is that the display is tough to see in bright light. Other than that I love it. Works great with my iPod and my Galaxy S4. Lots of sound adjustments to shape it to your liking. The hands free Bluetooth works great also.
The power per channel, blue tooth, and USB (x2) ports. Its a bit more complicated to understand how to run it, but if you look at youtube there are a couple of nice videos that show it better than the manual
Because the phone thinks that it is playing everything through BT, you hear nothing. Waze lets you play instructions through the phone rather than the head unit but that's a nasty hack, especially in a loud car. How about using Siri? Nope that doesn't work either.On the bright side, HD Radio works well and while setting and recalling presets is obscure and unintuitive, you can get used to it.
The sound is awesome, and it has all of the features that you could want at a very reasonable price. I am very pleased with my purchase.
Very happy with it. Not a real technical person but it works well, as advertised,  and the price was much better than I found anywhere else. Two thumbs up.
Answer: The Kenwood app sucks, and isn't worth installing. It only allows you play music stored locally on the phone, and won't work with 3rd party players like Google Play Music, Amazon Music or any podcast or streaming services. The Bluetooth audio streaming works well for all of those things though, and the built in support for Pandora is top notch. It's a great stereo and I've been very happy with it, but the Kenwood app is next to useless, and thankfully  isn't required.If you want to try the Kenwood app on your phone before buying, you can get it from the play store, but like I mentioned it is next to useless, and the built in bluetooth audio streaming is superior.