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

Input:
Question: Will this device work with the iPhone 6? Also how fast is the bluetooth connectivity? I heard it could be pretty slow.
Document: I'm not entirely happy with this purchase. It takes too long to start playing music from the time you start the car, to the time music is heard. It doesn't matter if it's reading MP3's from CD, Flash, iPhone, or Bluetooth source... it's just too slow.I see that at least one other person had trouble getting their iPhone to work.
You cannot play video OR any audio track from any iPhone App without the light green wire connected. It's supposed to be connected to the parking circuit...somewhere, but I never figured out where. But I came across a U-tube video that demonstrated that it is supposed to be connected to a ground switch in the parking circuit and in "most" vehicles, all you have to do is ground this wire anywhere there is a chassis ground and it will work.
I did not tried streaming audio over Bluetooth.The bad1) Kenwood makes you think that you can listen to the iPod audio with the regular USB cable for iPod. Here is what they say in the user manual. "To listen to music: USB Audio cable for iPod/iPhone-KCA-iP102 (optional accessory) OR USB 2.0 cable (accessory of the iPod/iPhone)". Did you notice the 'OR' there?
Excellent touch screen, great sound and features. Installation was quite easy and I did it myself including the mic. Your old XM antenna will not fit this unit, because SiriusXM uses a different connection. Also, SiriusXM charge $15 to change radio IDs...so if I could rate Sirius I'd give them 1.5 stars. But the radio unit still gets 5.Finally, don't forget to buy the necessary mounting and trim kit for your model of vehicle.
The good:This is a huge improvement over my factory 2003 Ford F-150 stereo. Tuner and satellite work great and sound terrific with no amplifier needed. Love the touch screen and easy set-up menus. Bluetooth paired with no problem and hands-free calling is awesome.The bad:1. There are a couple of excellent reviews here from Ryan and JK that are spot-on about problems and work-arounds.
Great unit, couldn't ask for more. User friendly, customizable, awesome sound I could go on and on. If your in the market this is it!
Solution:  Follow this idiotic process:  you have to connect the iPhone via USB, then start playing from the iPhone source on the stereo (I have a 5S), then put the stereo into standby mode (source/standy) huh?, then change the audio source in the settings from the default 'iPod' to AV-IN2.You don't need to purchase the special cable from Kenwood.
I bought this item and it froze a lot, and didn't work correctly with my iPod. I contacted the seller (Magic Sound) and they told me that the item was defective and would give me a full refund. I paid out of pocket to ship it back, and they said that the item was fine and they would charge me a 20% restocking fee. right after telling me that the item was defective. stay away from this item and stay away from the seller.
Installation went quick and smooth with the Metra harnesses and steering wheel control. I ordered the Metra harness for Toyota and ASWC. No splicing into car wires. In 40 minutes I am a happy guy.Then I could not get sound from my IPods. I tried several things, but only thing that worked was to hook up a 3.5 mm, both male ends, cable from the back of the head unit to my IPod.
Works great. Touch screen is amazing, works as well as the screen on a phone. Has Bluetooth audio streaming and handsfree, which is why i bought it. Comes with a microphone as well. I use android so cant tell you anything about the Crapple portion of the unit. Will update review down the road when ive had it longer.
Answer: I don't know about the iPhone but the bluetooth works fine for me