OK i was coming home from work today and i had to go to the store. i got to the store and when i was leaving my cel came on. i pulled over to check to see what it was i put the clip in there and nothing came up. I started the car back up and it never came back on, i drove it for about 30 mins and still no cel. i drove it hard and i drove it normal and still nothing, what do you guys think it could be?