Check under the cover on the passenger fire wall.......You will find a starter relay there. Pull off the little covers on the wired posts and use a screwdriver or cables to jump them. If your starter spins and turns the motor over, then the relay is your problem. If you STILL get a click...probably your starter or solenoid on the starter. Try to tap the jumper to and fro quickly for about ten hits. This might be enough to get you starter going again. I had to do this once before...... Mine likes to click on me about 2 times a year. I guess I am on borrowed time but I do not drive the Lightning everyday.