The system went berserk in my Signature last night,shutting down,rebooting,switching XM channels on its own,even switches from USB stick to XM and back on its own. My 2016.5 would usually reboot several times in cold weather but nothing like this,and its not even cold here yet,only about 1c. I'm going to mention it to the dealer next time I'm in,but what do you people think?