I just purchased this device ->
http://www.amazon.com/dp/B009NLTW60/..._M3T1_ST1_dp_1
I gotta say, this thing works *very* well. Audio quality so far has been very good. Seems the aptX support really works to improve audio quality over BT. The unit has no battery, so it simply turns on and off with the car. If using with an Android phone, you can set turn off the HSP/HFP profiles on the Kinivo and use the car's BT for phone functions. Both connections are simultaneous. Very happy with this product thus far!