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: 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.
Summary: This works awesome. I bought this in conjunction with the Toyota harness from crutchfields and it installed in a 30 minutes. Most of that time was running the mic wire through my door beam and under the headliner panel.
Summary: Easily installed the product in my 2008 F-250 along with the Ford T-Harness. There was not any splicing. Just connected the plugs and the unit was operational. The operation of the unit is easy and the sound is clear on both ends. No Complaints.
Summary: This product ROCKS! I installed this in my 2009 Ford Ranger with an Alpine 9885 Head Unit. Make sure you order the correct T cable for your application. The CK3100 took me about 2 hours to install. Mostly spending time taking the dash apart and putting it back together. Once your inside the dash, its no more then 10 or 15 minutes to plug the cables together and verify the operation. I mounted the microphone on the drivers side column grab handle.