I have hooked up my AppleTV in my 2014 Jeep Grand Cherokee and the picture of course looks weird due to the 8.4" screen not being widescreen. The picture is stretched vertically. I have an 3rd generation AppleTV and I know the native output is 16:9 and this cannot be changed in settings right? Is there a jailbreak app that I could use to change the aspect ratio? I'm looking to make the picture look right for the built in apps netflix espn etc.