the CK3000 does not support a2dp (it is mono anyway)
The MK6100 I put in my wife's pilot does:
http://www.parrot.com/usa/products/h...s/parrotmk6100
It connects the same way as the ck3000, so my writeup would be the same for either kit.
I have no experience with moto kits, other than hearing one in someone else's car, and I was not impressed with it. he was using the external speaker though, as his car had an aftermarket head unit with mute input.
I dont have any a2dp devices yet. I am thinking about picking up a bluetooth mp3 player, and seeing how it works. But $200 is alot to spend on something I might not like. Plus her pilot is not amplified. so the output in her car would straight from the parrot brainbox to the speakers.
I am curious how it would work in my car though. I was going to buy the MK6100 (and should have

Im a dumbass) since my output goes into the bose amp first. I might still do it.
I went with the ck3000, because it was half the price. $80 vs $170.