Alpine INA-W900BT vs. Kenwood DNX6960

JACKPAC

I'm looking to upgrade the audio in the Z for 2 main reasons:
1) This car needs a back-up cam.
2) While I'm at it... Nav would be nice

I listen to Sat radio almost 100% of the time and sound quality is of upmost importance. Now, after saying that, I'm not planning on changing anything else in the BOSE system. Just the HU. I also need to maintain a quality BT system, since I travel a lot and need to be able to hear and be heard while driving.

I was looking at the Kenwood DNX6960 (that's the price point I want to stay at), and noticed that I can get the Alpine INA-W900BT for a little cheaper now. The Alpine has a full screen, and I've always enjoyed my single DIN Alpine units of the past, but I'm concerned that no one other than Kenwood (Garmin) can get a GPS working right.

For those in the know... which would you lean toward for SQ, Nav, Sat radio, while retaining quaility BT? FYI... I've never plugged my Iphone into anything other than a wall, so that's not important to me.

Feel free to suggest any other options I may have overlooked as well.

Thanks!