Hello I have an 2011 B8 A4 when I leave my car parked outside in the sun all day while Iím at work and start my car my MMI is frozen. Whatever station I have it on is where it stays and the volume up and down doesnít work and neither do any of the buttons such as media, nav, phone etc. I usually try to hard reboot it several times and eventually it starts working again. Has anyone else had this issue? If so how do I fix it? Thanks in advance