2010 Sebring Navigation?
 

So here's the deal. I've searched high and low for answers to this, and I'm coming up blank. I'm hoping that someone can help me on here !

I own a 2010 Sebring Limited with the Boston Acoustics sound package. It doesn't have the Nav system, but I would really like the get either the stock Chrysler system, or an aftermarket system WITHOUT losing the functionality of my steering wheel controls, uConnect or anything.

Can I change the head unit and retain EVERY factory control? Or am I stuck?

Any help would be greatly appreciated.

Also, I don't want to lose performance on my sound. I heard aftermarket tends to kill your volume/quality.