Summary: I really like my Parrot hands free device. it is easy to learn to use. I can hear the person that I'm speaking to great and they can usually hear me well too, unless I hit a "dead zone". I would recommend this device to all those drivers who use one hand to hold their cell phone while trying to navigate their cars in parking lots and while cutting in and out of traffic.
Summary: I bought the Parrot CK3100 and a Metra BT-1721-A wire harness adapter for my 2003 Honda Odyssey. The installation itself took about 2.5 hours, but the majority of that was figuring out where to place the microphone and display unit, and then hiding all the wiring. Once powered up and paired with my wife's and my phone, it worked pretty much flawlessly. It imported my contacts with ease, the voice recognition worked well, the radio muted as it should have.
Pros: When paired with the Metra wire harness, installation was painless and quick.
Cons: The double sided tape, included for mounting, would not stick to my dashboard. I had to use some industrial strength velcro instead.
Summary: I got this in the mail opened it up and installed it in one hour. I recommend the Metras wiring harness it made this install easy. I also advise that if you have never done a 12 volt install a car to go out to youtube and put in your make am model and search on how to put an aftermarket stereo in. I found a 7 min video on how to do it. After it was installed it was so easy to pair up the device.
Pros: Wiring harness and easy pairing
Cons: The instructions are vague when it comes to determining which side of the harness is for 12v and which is speaker.
Summary: Easy install in 2008 Toyota Yaris HB. AM/FM/CD radio in car is a JVC KD HDR1. Replaced factory radio couple years ago. Using a HTC Incredible on Verizon Wireless. No problem pairing. Works fantastic!! Be sure to purchase additional wire harness for Toyota to make the job a piece of cake to install. Control head is easy to operate, display easy to read, day or night. If you are a DIY type of person this unit will give you no hassel.
Summary: The Parrot CK3100 looks like a good product, but I almost gave up on the installation. I bought it from Crutchfield because of the good experience I have had with their Tech Support on the seven other radioes I have bought from them over the last 30 years. The Parrot manual was so generic that it was almost useless. The Crutchfield Tech Support guy didn't seem to have much better information, and I almost gave up and shipped the equipment back.
Summary: Bought this unit with the harness for my mothers 2009 Honda CRV - easy installation and great sound quality, both in the car and for the person on the other end of the line. As someone else noted, the most time consuming part of the installation was removing the overhead light/console and fishing the microphone wire over the headliner, down the A-pillar and to the factory radio. There is plenty of room behind/under the radio for the parrot box and the wiring harness.