i have a 00 denali and it has sat in the drive the past month w a start here and there...but i went out there yesterday to start it and it was dead. I went to start and it did the loud clicking noise and no start, i pulled the key out and as i was walking back to the door it made the loud clicking noise again..no key in the ignitionb or anything...tried to jump it today and it was a no-go...not a thing happened while i jumped but multiple clicking noises...any help w my issue