Great choice! I would suggest buying it from this website Alpine IVE-W530 Double-DIN Car Stereo w/ Bluetooth
when you go to check out they will ask you for the year make model and then choose mustang with Mach audio system. they'll give you the proper harness and dash kit for a smooth install! And that interference thing almost sounds like a scare tactic to get you to buy more because for me the Audio is perfectly clear and strong!