Google found a few GM install/reviews, if you're looking for performance details. Otherwise, installation would be like any other bluetooth/audio accessory.
You do realize the Moto T605 from my writeup also does A2DP, right? You can pick a T605 up for $50 or less, depending on your comfort with open box items. You'll also need to pick up an aux input adapter to connect the T605's line outputs to the head. I'd personally go with the
GromAudio unit that also provides a USB for $130ish. You're looking at about half the cost of the BlueFusion for more device connectivity, but you would give up the caller ID on the radio display and possibly the steering wheel control (the reviews I found said they were hit or miss on some vehicles).
-Brent