My car has been running fine. Now it will not crank. Yesterday, it was having

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Trouble cranking but it eventually got started. After my ABS light and seat belt light came on and i had my seatbelt on. When the lights came on it caused my radio to loose sound but even still my car was running fine. No jerks good no stalls nothing. Now today everything turns on in my car but it wont turn over. It has a rapid click when i try to start it.