Today I ordered a Parrot CK3000 Bluetooth Kit for my Bora.
It comes with a Toyota Loom, but it should be easy enough to modify.
The controls are quite minimal, and I have plans to integrate them into a couple of buttons in my overhead console, but more on that later. The beauty with this system is that it mutes the sound system and uses the car speakers, so clarity should be good.
I'll be sure to post some photos and descriptions once it arrives and I install it.
http://www.universalfuze.com/bluetooth_kits.html