Hi, not sure about retaining Uconnect. But take a look at the PAC swi-(jack/rc/pc/x) whatever one that's for your deck, the jack is for my alpine HU). You'll also need the PAC C2R-CHY4 harness to install the deck.
Also have to make sure your aftermarket deck has the ability to use swi-jack for steering wheel controls. You could look for a deck that has bluetooth built in.