It is a really simple install compared to some of the builds here, but it sounds great and is mostly hidden...
I kept the factory Stereo / Nav / Rear Entertainment system for many reasons, but one main one is the Sync stuff from Microsoft - I love it!
Here is my list of things I installed:
JL Audio CleanSweep CL-SSI - Signal Summing Interface
JL Audio CleanSweep CL-441dsp - Digital Signal Processor
JL Audio HD900/5 - Middle / Rear / Sub Amp
JL Audio HD600/4 - Bridged - Front Amp
JL Audio ZR570-CSi - Front Speakers
JL Audio ZR570-CSi - Middle Speakers
JL Audio ZR650-CSi - Rear Speakers
JL Audio CVS112RG-W6v2 - Subwoofer
I also used JL's battery blocks, fuse blocks, cable, etc...
I Wanted to keep it all the same, made it nice and easy!