-30 outside and went to boost my 2006 2006 Pontiac torrent,after the car was running the display for clock and radio was blank,the radio works fine,the display is lit up,there just isn't any display info(time or radio station)anybody no what could be the problem,I'm in Edmonton,Canada and it's -30 Celsius today and all week,might have to boost again and I don't want anything else conking out on me.