Help!!! I am pulling all my hair out. This is the second weekend the SL won't start. Turn the key, all lights come on, but the engine won't turn. Not even a click. The last time it happened, I wiggled all the fuses and the car started right up. Not today. I even changed out some of the fuses, but still no start. Where else should I look?

Any suggestions?

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95 R129
04 Infiniti G35.5 BS
10 X204