2011 Mustang Audio Upgrade help

[Phantomx2]

Hey guys I got a 2011 Mustang GT hardtop. I opted to go with the factory non upgraded stero system. Now I am thinking about going with the JL stealth box and if I do I was going to upgrade the interior speakers. And I want to put in an in-dash nav system. I was wondering if anyone had any suggestions on what I should get.

[GT800]

well i have the alpine in dash double din in both my cars and love it. Alpine produces the best quality headunits in my opinion.

[GearGambler]

I put a Sony XAV-60 in the 05 coupe and I don't like it at all. It sounds great Hooked up to the shaker 1000 but the interface sucks.

I put a clarion VX400 in the 03 Cobra. That unit is nice and upgradable to hd radio, satellite radio, and navi if I want to do that later. 280 on eBay isn't a bad price!